Links for K-12 Teachers | Assessment Assistance | On-Line Practice Modules | Daily Dose of the Web

6th Grade Mathematics Skills

Number & Operations | Algebra | Geometry | Measurement | Data Analysis | Review Help
Links verified 7/21/08
Return to Grade Level Skills
Worksheet Generator - This web site will allow you to create printable math worksheets from your browser.
(addition, subtraction, multiplication, division, mixed problems, fractions, measurement, fractions, graphing, telling time, and a one-hundred chart)

a site for teachers | a PowerPoint show | Adobe Acrobat document | a Word document sound | video format | interactive lesson | a quiz | lesson plan | to print

1. Identifying Place Values - identify the place value of the digits &
   1. Finding Place Values - find the place value of a particular numeral within a number &
2. Expanded Form of Numbers - write the numeral the expanded form represents &
3. Place Value in Words and Numbers - type the correct numeral to represent the words &
4. Specific Place - find the numeral in a specific place value &
5. There Must Be Thousands - [this link opens in a new window] read, write and identify numerals to the hundred thousands (Author - Sandi King)
6. What's Your Name? - [this link opens in a new window] know the value of numbers when written in standard form or expanded notation (Author - Sandi King)

1. Arrange a Party - [this link opens in a new window] use problem solving steps to find and use the range of a set of data to plan a party (Author - Kristy Rousseau)
2. Disaster Math - Six sets of math quizzes; Earthquake Math, Hurricane Math, Tornado Math, Wild Fire Math, Winter Storm Math, and Flood Math.
3. Let's Do Lunch - [this link opens in a new window] use a menu to order lunches that meet various criteria (Author - Sandi King)
4. Making Change at the Math Playground - calculate change back on a purchase then click and drag the change to the counter using the smallest number of bills or coins
5. Math at the Mall - practice percentages and finding the best deal while shopping at a virtual mall
6. Shopping at Troy's Toys - percent shopping
7. Show Me The Money - [this link opens in a new window] add using columns (Author - Sandi King)
8. Spy Guys Interactive - Decimals - Click Skip Intro, then select Lessons, and then click on Lesson 1
9. Spy Guys Interactive - Solving Problems with Decimals - Click Skip Intro, then select Lessons, and then click on Lesson 5
10. Spy Guys Interactive - Problem Solving Bank - Click Skip Intro, then select Lessons, and then click on Lesson 20. (fifteen problems to solve, with suggested strategies given)
11. Word Problem Practice - problems in addition, subtraction and more

1. Algebra Puzzle - Find the value of each of the three objects presented in the puzzle. The numbers given represent the sum of the objects in each row or column. Sometimes, only one object will appear in a row or column. That makes the puzzle easier to solve. Other times, you will have to look for relationships among the objects.
2. Calculate percent - Discover relationships between fractions, percents, and decimals
3. Equivalent Fractions and Decimals - decide which answer will balance the scale
4. Finding a percent of a quantity - online quiz
5. Fractions, Decimals or Percent - two are given, you supply the third
6. Percents and Wholes - online quiz
7. Percent Game - [this link opens in a new window] FunBrain site [these are difficult]
8. Practice Solving Percent Problems - more percent practice
9. Percents and Ratios - an index of pages that teach percent and ratio skills covered in K8 math courses - Each page has an explanation, interactive practice and challenge games about percents and ratios. (from AAA math)
10. Percent Problems - [Caution: if the answer is a percent, the percent sign must be typed or the answer will be considered wrong.] a one-player, or two-player Jeopardy-type game from Quia [this link opens in a new window]
11. Shopping at Troy's Toys - percent shopping
12. Solving Percent Problems Using a Pyramid Grid - [this link opens in a new window] an interactive lesson
13. Spy Guys Interactive - Solving Problems with Decimals - Click Skip Intro, then select Lessons, and then click on Lesson 5
14. Spy Guys Interactive - Improper Fractions & Mixed Numbers - Click Skip Intro, then select Lessons, and then click on Lesson 2
15. Spy Guys Interactive - Percent - Click Skip Intro, then select Lessons, and then click on Lesson 4
16. Using percents - online quiz
17. Using the Proportion Method to Solve Percent Problems - practice problems at the end
18. What's Your Name? - [this link opens in a new window] know the value of numbers when written in standard form or expanded notation (Author - Sandi King)

1. Adding Fractions - with the same denominator &
2. Adding Fractions - mixed denominators
3. Adding Fractions - using circle graphs - Mixed numbers
4. Multiply fractions - with circles,mixed number times a whole number
5. Multiplying Rational Fractions - online quiz - (answers provided)
6. Multiplying Fractions - [this link opens in a new window] Soccer Shootout - [Caution: the answer must be reduced to be graded as correct. For example; 2/3 not 4/6.] (FunBrain activity)
7. Subtracting Fractions - with same denominator &

1. Comparing Exponential Expressions - select, <, >, or =
2. Comparing Fractions Factsheets - seven factsheets are available
3. Comparing Fractions Game - three levels are available
4. Comparing Fractions Games - two games; Dolphin Racing, and Ordering Game
5. Comparing Fractions Quiz - three levels are available
6. Comparing Fractions Worksheets - four worksheets available
7. Comparing Integers - Comparing integers with absolute values
8. Comparing Numbers Factsheets - five sheets to print
9. Comparing Numbers Quiz - three levels available
10. Comparing Numbers Worksheet - three sheets to print
11. Comparing Values - Create your own math facts worksheets for comparing values. Problems can include calculations using positive and negative numbers, and two-digit decimal values.
12. Evaluating Expressions - a four step lesson
13. Evaluating Expressions - Get out your pencils and calculators and give these a try!
14. Fraction Sorter - interactive site posted by Shodor
15. Greater, Less Than, or the Same - Compare these decimals
16. Ordering Decimal Numbers - click and drag the numbers to put them in order from least to greatest
17. Ordering Decimal Numbers II - click and drag the numbers to put them in order from least to greatest
18. Percent with a Calculator - after the lesson there are problems to work
19. Put Numbers in Order Game - three levels are available sort 4, 6 or 8 numbers
20. Put Whole Numbers in Order - Three or more numbers can be placed in order. A number may come before the other numbers or it may come between them or after them
21. Spy Guys Interactive - Understanding Integers - Click Skip Intro, then select Lessons, and then click on Lesson 6
22. Symbols of Inclusion - simplify each expression and choose the correct comparison symbol

1. Composite and Prime numbers
2. Number Cop - select Primes, click on Start then use the left and right arrows to move the police car to intercept only prime numbers
3. Prime Numbers - Prime Number Sieve: "Remove all proper multiples of the next remaining number." Start with the number 2.When all proper multiples of all numbers in the first row are deleted, the table will contain only primes.

1. Algebra: Order of Operations - [this link opens on a new page] a quiz from Quia
2. Calculations Using Order of Operations - AAA Math lesson and practice problems &
3. Division and Order of Operations - matching game
4. Evaluating Algebraic Expressions - from Regents Prep
5. Evaluating Algebraic Expressions - Order of Operations/P.E.M.D.A.S.
6. Exploring Order of Operations - [game] click on the operations in correct order
7. Flintstone Example - four characters try to solve a problem, four more examples at the bottom of the page.
8. Learning Activity: Order of Operations - interactive lesson
9. Math Quiz Game: Jeopardy style - Jeopardy style PowerPoint review game
10. Order of Operations - Math Goodies from Ms. Glosser
11. Order of Operations - a matching grid pattern game
12. Order of Operations - Try a workout of 10 problems. If you get at least 8 correct on your first attempt, then you're ready to move on. If not, review "In Depth" and try again.
13. Order of Operations - a 16 slide PowerPoint show with practice problems
14. Order of Operations: What to Do First - a 25 slide PowerPoint show
15. Order of Operations Game - Drag the numbers and the operation signs on the wood board to complete the equality
16. Order of Operations Game - from MathFrog
17. Order of Operations Pretest - ten multiple choice questions
18. Order of Operations Tutorial - introduction, explanation, examples and a workout of sample problems
19. Order of Operations Tutorial - work through several examples
20. Order of Operations with Exponents - Math Goodies from Ms. Glosser
21. Order of operations game from Funbrain.com [this link opens on a new page] (easier levels are available)
22. Order of Operations Online Worksheet - ten problems, answers available
23. Practice with Order of Operations - ten practice problems [answers available]
24. Practice with Order of Operations - Get out your pencils and calculators and give these a try!

1. Comparison Estimator - Similar to Estimator but compares two sets of objects.
2. Disaster Math - Six sets of interactive word problems: Earthquake Math, Hurricane Math, Tornado Math, Wild Fire Math, Winter Storm Math, and Flood Math.
3. Estimating by Rounding - Addition with regrouping - instruction and review, practice, and a quiz &
4. Estimating by Rounding - Subtraction with regrouping - instruction and review, practice, and a quiz &
5. Estimating Sum - No hints or clues given - instruction and review, practice, and a quiz &
6. Estimation Strategies - several strategies are discussed
7. Estimator - Practice estimation skills by determining the number of objects, length, or area. (parameters: error tolerance)
8. Fermi Questions Library - Fermi questions use estimation procedures to solve questions like "How many jelly beans fill a one-liter jar?"
9. How Big are Things - a printable cube to be used in making size estimations [several versions]
10. How to Simplify a Number - part of being approximate is simplifying numbers
11. Long Division Teaching Aid: Double Division - Teaching Double Division can help in teaching long division by reinforcing the principles of division and giving students success with a less frustrating alternative.
12. More or Less Estimator - Similar to Estimator activity but states a quantity and asks the user to estimate whether the set of objects is more or less than the number given.
13. Pinocchio estimation game - suggested game for developing the skill of estimation
14. Round About - [this link opens in a new window] estimate by rounding. (Author - Sandi King)
15. Rounding Off - Three levels are available in this game from BBC Education
16. Scaling the Universe to Your Desktop - estimating size
17. Spy Guys Interactive - Rounding Numbers - Click Skip Intro, then select Lessons, and then click on Lesson 9
18. Weigh the Wangdoodles - Your job is to find the weight of each Wangdoodle using the information provided by the scales. To be successful, you will have to make sure that the weight you assign to each Wangdoodle works on each scale. This activity is a fun but challenging introduction to multiple algebraic equations.
19. Word problems - online quiz adding and subtracting fractions
20. Your Body as a Ruler - a user's manual

1. Count the Goodies - This multiplication activity from Harcourt School’s Mighty Math Calculating Crew asks you to multiply using regrouping. Three problems at a time are presented.
2. Decifractator - convert fractions to decimal equivalents
3. EZ Fractions - Add, Subtract, Multiply and Divide fractions - Help tools are on the site to give students every tool necessary for performing operations with fractions as easy as it has ever been!
4. Long Division Teaching Aid: Double Division - Teaching Double Division can help in teaching long division by reinforcing the principles of division and giving students success with a less frustrating alternative.
5. Making Change at the Math Playground - calculate change back on a purchase then click and drag the change to the counter using the smallest number of bills or coins
6. Math at the Mall - practice percentages and finding the best deal while shopping at a virtual mall
7. Math Baseball - Complete the Number Sentence - (Fun Brain) [these links open in new windows] - All Operations - Numbers less than 100 | All Operations - Numbers less than 1000 | Division - Numbers less than 100 | Division - Numbers less than 1000 | Division - Numbers less than 10,000 | Multiplication - Numbers less than 1000 | Multiplication - Numbers less than 10,000
8. Math Facts -Timed math facts, or select practice mode without the timer
9. Math Mayhem - A fast paced program where student can select addition problems. (most are two digit problems) - warning: turn sound to mute; this activity gets very loud!
10. Mental Math - Select an operation to practice your skills
11. Mixed Review - Addition and subtraction of three numbers - find answer to reveal mystery picture (warning: very difficult, will need pencil and paper)
12. Space Racer (Asteroids) - to aovid asteroids you must solve multiplication problems; move left by solving the left-side problem or move righrt by solving the right-side problem
13. Timed Facts - at end of 60 seconds shows the score and answers to problems
14. Decimals
    1. Adding with decimals - Addition of numbers with three decimal digits
    2. Complete the number sentence - [this link opens in a new window] all operations with decimals
    3. Decimal addition - Push the green blocks into the holes to make the target number.
    4. Dividing Decimals - [this link opens in a new window] Complete the number sentence
    5. Division of Decimals - [this link opens in a new window] Divide with 2 decimals
    6. Division of Decimals - [this link opens in a new window] Divide with 3 decimals
    7. Multiplying and Dividing with Decimals - online quiz
    8. Multiplying with decimals - [this link opens in a new window] Multiplying numbers with two decimals
    9. Rounding off - Round numbers to significant decimal places - (interactive game)
    10. Subtracting with decimals - Subtraction with three decimal digits
15. Fractions
    1. Divide fractions - (using circles) this will show graphically how the divisor will fit into the dividend a whole number of times
    2. Dividing fractions - Fraction Bar -This is a very versatile tool that can be used to illustrate a variety of number operations.
    3. Equivalent Fractions - find the fraction that is equivalent to the fraction given
    4. Fractional Distances - find Grampy by entering a fractional distance - (includes mixed numbers and various fractions)
    5. Fraction Practice - [this link opens in a new window] All operations, mixed practice - (explanations given for wrong answers)
    6. Multiplying and Dividing Fractions - online quiz
    7. Unstated Information in Fraction Problems - use the information provided to find the unstated information
    8. Worksheet Generator - Reducing Fractions to Lowest Terms - You decide on the number of problems, the difficulty and whether or not to include improper fractions

1. All About Ratios - a Quiz
2. All About Ratios - links to several lessons by Cynthia Lanius
3. All About Ratios: (Problem Solving) - A famous Texas chef has a secret recipe for her chili. When people ask her for it, she hands them a card with the complete recipe except for 1 detail. For the missing detail, she gives them a clue. Use ratios to discover the missing ingredient.
4. Comparing Ratios and Rates - online quiz
5. Determine the number based on the ratio - instruction and review, practice, and a quiz &
6. Determining the Ratio - instruction and review, practice, and a quiz &
7. Figure This: Math Challenge for Families - proportional reasoning
8. Interpreting and Applying Proportions - online quiz
9. Learning ratios and proportions through scale drawings - a text only lesson plan
10. Math for Morons Like Us - a ThinkQuest entry on ratio
11. Nutshell Math: Ratios and Proportion - video lesson with examples and sample problems
    1. You Tube video of the same lesson - Instructor: Ms. Jenkins
12. Percentages and Proportions - online quiz
13. Percents and Ratios - an index of pages that teach percent and ratio skills covered in K8 math courses - Each page has an explanation, interactive practice and challenge games about percents and ratios. (from AAA math) - instruction and review, practice, and a quiz &
14. Percent with a Calculator - after the lesson there are problems to work
15. Practice with Ratios - online quiz
16. Proportion Practice Test - thirteen multiple choice questions
17. Proportions and Ratios - good explanation of means and extremes from Free Math
18. Rags to Riches: Ratio and Proportion Quiz - [this link opens on a new page] quiz at Quia
19. Rates, Ratios, and Proportions - [this link opens on a new page] a two person quiz from Quia
20. Ratio/Proportion Problems from Ask Dr. Math - three pages of links to real-world problems
21. Ratio & Proportion - math review practice exercises
22. Ratio & Proportion - A proportion is a name we give to a statement that two ratios are equal. (This is a 3 step lesson followed by a workout.)
23. Ratio and Proportion - explanation and examples
24. Ratio and Proportion - introduction, in depth explanation, examples and a workout of ten problems
25. Ratio and Proportion Quiz - play this game to practice writing ratios
26. Ratio Exercises: Dolls : Camera] | Same ratio -- Fish : Atom | Different ratio -- Spider : Lizard | Different ratio -- Dots : Stars | 2 Dolls for every 1 Camera | 3 Atoms for every 2 Fish | [How Many Spiders do You Have? | Which Way Gives More Pizza?
27. Ratio Proportion Calculator - Enter the known and unknown values from your proportion problem. In classic algebraic format, place an x in the box where the value is unknown. Then select Calculate and click on it.
28. Ratios - a six page module from Purple Math
29. Ratios and Proportions - explanation with four sample problems
30. Ratios and Proportions - an interactive lesson in a slide show format
31. Ratios and Proportions - an 18 slide PowerPoint show
32. Ratios and Proportion Review - a 12 slide PowerPoint show
33. Review of Proportion - examples and practice problems
34. Review of Ratios - examples and practice problems
35. Skillwise: Ratio and Proportion - five part module; fact sheet, game, quiz, activity and worksheet
36. Spy Guys Interactive - Ratio - Click Skip Intro, then select Lessons, and then click on Lesson 3
37. Teaching Ratios and Proportions - suggestion for teachers and parents
38. Using Proportions - online quiz

1. Long Division Teaching Aid: Double Division - Teaching Double Division can help in teaching long division by reinforcing the principles of division and giving students success with a less frustrating alternative.

1. Number & Operations (Grades 6 - 8)

1. Create your own pattern - Drag shapes to create a pattern. Instructions on how to use this page in your classroom.
2. Number Cracker - guess what number comes next in the pattern
3. Select the shape that comes next - a worksheet to print
4. Spy Guys Interactive - Summarizing/Extending Patterns - Click Skip Intro, then select Lessons, and then click on Lesson 8
5. What Comes Next - customizable worksheet source

1. Million Dollar Mission - a mathematics fantasy

1. Ambleweb Function Machine - identify what process was used to produce a sequence of numbers (twelve processes available)
2. Function Machine - investigate very simple functions by trying to guess the algebraic form from inputs and outputs.
3. Linear function - move your cursor to the green block to select step 1
4. Linear function and Graph - move your cursor over the green block to see lesson 1 or lesson 2
5. Linear Function Machine - investigate linear functions by trying to guess the slope and intercept from inputs and outputs.
6. Positive Linear Function Machine - investigate linear functions with positive slopes by trying to guess the slope and intercept from inputs and outputs.

1. Greatest Common Factor - select from three possible answers
2. Factors - select the answer that is not a factor of the displayed number
3. Spy Guys Interactive - Balancing Equations - Click Skip Intro, then select Lessons, and then click on Lesson 11
4. Spy Guys Interactive - Factors, Multiples, and Prime Factorization - Click Skip Intro, then select Lessons, and then click on Lesson 7
5. Using Number Patterns, Fractions, and Ratios - [this link opens on a new page] use a Quia quiz to practice greatest common factor, simplify fractions, least common multiple, and divisibility rules [Who Wants to be a Millionaire format]

1. Exploring Baby Weight Mathematically - A baby's weight changes dramatically in the first weeks of life. For example, students will look at data for Baby Kevin and Baby David.

1. Is That A Fact? - [this link opens in a new window] select the appropriate operation for solving a problem (Author - Randy Russell)
2. Symbols of Inclusion - simplify each expression and choose the correct comparison symbol

1. Algebraic Reasoning Using Weighing Scales - Learn how to think algebraically with these clever weighing scales. Levels 1 and 2 contain two scales. Level 3 is more difficult and has three scales. Your goal is to determine the weight of one or more of the objects.

1. Algebra (Grades 6 - 8)

1. Billy Bug - Guide Billy to the coordinates hiding the food. coordinates 0-10 | coordinates 0-5
2. Create a Haunted House...if you dare! - Follow directions to sharpen your graphing skills, create a cool haunted house and then morph it using math. Expressions, Equation Solving and Graphing in the Coordinate Plane - The Haunted house and many more coordinate plane practice problems
3. Graphing Applet - interactive site which identifies the ordered pairs of points students click on - Advanced version of the same applet
4. Graphing Equations and Inequalities Unit Quiz
5. Graphing Ordered Pairs - explanation and interactive practice
6. Graphing Skills - [this link opens in a new window] What's the point? find the point on the grid (choose Easy for Quadrant 1 problems)
7. Grid Graph - [this link opens in a new window] identify and plot points on a grid (Author - Paulette Boggs)
8. Reading a Grid - Find Hurkle behind the grid. Type ordered pairs to find him
9. Simple Coordinates Game - Students investigate the first quadrant of the Cartesian coordinate system through identifying the coordinates of points, or requesting that a particular point be plotted.
10. Simple Maze Game - Students investigate the first Quadrant of the Cartesian coordinate system by directing a robot through a mine field laid out on the plane.
11. Spy Guys Interactive - Using Ordered Pairs - Click Skip Intro, then select Lessons, and then click on Lesson 18
12. What's the Point? - [this link opens on a new page] Find the x-y point on a grid
13. Worksheet Generator - Print your own blank coordinate plane worksheets, you determine the number of grids on a sheet and whether the grids are numbered or not.
14. Advanced (all 4 Quadrants used)
    1. Catch the Fly - [all 4 quadrants are used] Use the keyboard to enter the x and y values of an ordered pair to help the fly catch a bug. No score is kept, each question is essentially a one question game.
    2. Coordinate Plane Practice - [all four quadrants are displayed on each slide] students type ordered pairs in the blocks on this interactive PowerPoint show
    3. General Coordinates Game - Students investigate the Cartesian coordinate system through identifying the coordinates of points, or requesting that a particular point be plotted. (all 4 quadrants utilized)
    4. Maze Game - Students use their knowledge of points on a graph to move a robot to the target, while avoiding mines. (all 4 quadrants utilized)
    5. Stock the Shelves - [this link opens on a new page] You are the clerk. Stock the shelves using a special coordinate plane.

1. Identify Polygons - Names of polygons by number of sides and angles
2. Identify Shapes - Recognize properties and names of shapes
3. Name that Polygon - Identify name of given polygon components
4. Pete's Polygons - [this link opens in a new window] learn about closed figures called polygons (Author - Paulette Boggs)
5. Polygon Playground - arrange designs with online movable polygons - hundreds of polygons to drag anywhere you want
6. Sam's Similar Shapes - [this link opens in a new window] learn about shapes that are different sizes but the same shape (Author - Paulette Boggs)
7. Triangle Identification - identify the triangle given its angles
8. Triangle Identification - identify the triangle given its number of sides

1. Cube - Find out which colors will be on opposite faces of a cube whose faces are shown unfolded.
2. Flip, Slide, or Turn - six flash movies allow you to watch the path an object takes while it is being transformed
3. Flips, Slides, and Turns - a manipulative which allows you to view the effect of applying reflection, translation, and rotation transformations
4. Mathematical Movements (Flips, Slides and Turns) - [designed for 3rd grade] a 25 page lesson with printables
5. Measuring Turns - what would shapes look like if rotated
6. Motion in Geometry - a 127 slide PowerPoint show
7. Slides, Flips, and Turns - lesson plan with links to four printables
8. Spy Guys Interactive - Slides and Flips - Click Skip Intro, then select Lessons, and then click on Lesson 17
9. Transformations - a Flash movie which demonstrates flips, slides, and turns
10. Transformations - [designed for 7th grade] a 21 slide PowerPoint show produced by Holt, Rinehart and Winston
11. Translations - a seven stage lesson on flips, slides and turns
12. Wrapping Paper Patterns - [this link opens in a new window] decide which figures would result from a flip, a slide, or a turn (Author - Paulette Boggs)

1. 3-D Object Viewer - Students may explore a variety of 3-D objects and their accompanying 2-D views.
2. Building Houses with Side View - student constructs a block figure (dynamic, perspective drawing) to match (10 different figures)
3. Coloring 3-D sides - [UK spelling on this site] Find the red sides shown in a series of 2-D drawings and click on the right face of the 3-D model to color it red. 20 questions
4. Coloring 2-D sides - Use the colored portion of the 3-D object to color the correct side of the 2-D drawing.
5. Cube - Find out which colors will be on opposite faces of a cube whose faces are shown unfolded.
6. Guess the View - Students are given a 3-D view of an object, and then given a 2-D view of the object. Students must choose which of 6 views is being displayed from a list.
7. Plot Plans and Silhouettes - from Shape and Space in Geometry - the student task is to come up with plot plans that could match the given silhouettes. Background information is available at another page.
8. Rotating Houses - Students are presented with a 3-D figure created with blocks that can be rotated and flipped using a mouse. The figure must be rotated until it matches a 2-D representation of one of the views.

1. Acute One Or An Obtuse One? - [grades 5-8] six page worksheet to print and use in class
2. Angle Classification: Acute, Right, Obtuse - explanation and questions to answer
3. Angles - Students practice their knowledge of acute, obtuse and alternate angles.
4. Angles - Interactive game to help recognize angles.
5. Angles - a twenty slide PowerPoint show with a quiz to be used as a whole class activity
6. Basic Geometric Figures - a TAKS worksheet to print and use in class
7. Classifying Angles - quiz
8. Geometry Building Blocks: Calssifying Angles - explanation and drawings
   1. Examples to go with the lesson above
   2. Quiz to follow the lesson
9. How Do We Measure Angles? - six page worksheet to print and use in class
10. Measuring Angles - use a virtual protractor
11. Names of Angles - definition and drawings of each type
12. Protractor - learn how to position and read a protractor in order to measure an angle, and how to use either scale on the protractor
13. Right, Acute, and Obtuse Angles - sort angles into appropriate containers
14. Right, Acute, and Obtuse Angles - figures are shown, decide which is the proper angle
15. Teacher Tube Videos - links to nine videos on angles
16. Triangle Explorer - Students learn about areas of triangles and about the Cartesian coordinate system through experimenting with triangles drawn on a grid.
17. Triangles Side-By-Side - [this link opens in a new window] use geometric vocabulary to describe properties of triangles (Author - Carolyn Garner)
18. Types of Angles - definitions, and drawings of each type
19. Spy Guys Interactive - Working with Angles - Click Skip Intro, then select Lessons, and then click on Lesson 16

1. Construction of Bicentric Quadrilateral - a mathematical droodle
2. Interactive Quadrilateral - drag the dots
3. Java Sketchpad to Explore Shapes
   1. Isosceles Trapezoid
   2. Parallelogram
   3. Rectangle
   4. Rhombus
4. Practice With Quadrilaterals - a twelve question quiz with drawings
5. Quad Squad - [this link opens on a new page] a quick lesson on classifying and describing quadrilaterals
6. Quadrilateral Family - from regents prep
7. Quadrilateral Matching - concentration style quiz
8. Quadrilateral Quest - interactive lesson, drag and drop activity
9. Quadrilateral Sorter - click on a shape to find out about it
10. Quadrilaterals - a sixteen slide PowerPoint show
11. Quadrilaterals - a twenty slide PowerPoint show
12. Quadrilaterals - a twenty-six slide PowerPoint show produced by Holt, Rinehart and Winston
13. Quadrilaterals II - a twenty-eight slide PowerPoint show
14. Quadrilaterals Explained - from Math is Fun
15. Quadrilaterals Quiz - six multiple choice questions
16. Quadrilaterals - explanation, examples and questions to answer
17. Quadrilaterals - a wikipedia entry with a large number of drawings
18. Shapes: Quadrilaterals - explanation and questions to show understanding
19. What's My Quadrilateral - three different teaching ideas

1. Geometry (Grades 6 - 8)

1. Perimeter Explorer - Students are shown shapes on a grid after setting the area and asked to calculate perimeters of the shapes.
2. Perimeter of a Square - Calculate the perimeter of a square with given dimensions. &
3. Perimeter of a Rectangle - Calculate the perimeter of a rectangle with given dimensions. &
4. Spy Guys Interactive - Area and Perimeter - Click Skip Intro, then select Lessons, and then click on Lesson 12
5. Spy Guys Interactive - Relating Area and Perimeter - Click Skip Intro, then select Lessons, and then click on Lesson 13

1. Bedtime Bandits - (students try to stay up as late as possible by blasting killer clocks that drop from the ceiling) After each stage, identifying the correct clock gets harder and harder. Eventually, students have to blast the clock that is “4 hours and 15 minutes past 2:30 ”, for example.
2. Clockworks - Try to set the time on the clock. (select the challenge level)
3. Elapsed Time - free worksheets from Math Slice, time intervals from 1 hour to one minute

1. Measure it - [this link opens in a new window] practice using a ruler [inches and centimeters]
2. Measurement Equivalents - Match game with standard equivalent measurements, such as pounds, ounces, pints, cups, etc.
3. Practice converting from one metric unit to another with this java applet (length, area, volume, mass, or time units)
4. Teaching Measures - Choose from three modules; length, mass, and capacity. Each category offers several activities for your large screen display as well as supporting worksheets.

1. Alien Angles - estimate angles, without a protractor, ranging from 1-180 by dragging a movable line
2. Banana Hunt - This game helps students practice the degrees of an angle
3. Measuring Angles - Investigating angles and the use of a protractor
4. Spy Guys Interactive - Volume and Displacement - Click Skip Intro, then select Lessons, and then click on Lesson 15
5. Weight and Capacity - this video lesson explains weight and capacity and the units to measure each, and then gives your students the chance to show understanding on several quizzes. (somewhat elementary)

1. Area Explorer - Students are shown shapes on a grid after setting the perimeter and asked to calculate areas of the shapes.
2. Area of an Irregular Rectangle - calculate the area of each figure given
3. The Pythagorean Theorem - online quiz
4. Pythagorean Explorer - find the length of a side of a right triangle by using the Pythagorean Theorem, and then check answers
5. Shape Explorer - calculate areas and perimeters of the shapes
6. Squaring the Triangle - learn about how the Pythagorean Theorem works, through investigating the standard geometric proof. Parameters: Sizes of the legs of the triangle.

1. Index of topics and quizzes offered by David J. Leveson at CUNY in Brooklyn, NY
2. Latitude and Longitude quiz - online quiz that checks answers
3. Map Reading Activities - practice reading maps using compasses, latitude, longitude and more
4. Mathematics of Cartography - several map activity from Cynthia Lanius
5. National Atlas of the United States [this link opens in a new window]
6. Reading Map Symbols - identify symbols with words

1. JuniorArchitects - develop strategies for finding the perimeter and area for rectangles and triangles using geoboards and graph paper
2. Shape Surveyor - [this link opens in a new window] you never know what you'll find if you dig geometry

1. All About Ratios - a Quiz
2. All About Ratios: (Problem Solving) - A famous Texas chef has a secret recipe for her chili. When people ask her for it, she hands them a card with the complete recipe except for 1 detail. For the missing detail, she gives them a clue. Use ratios to discover the missing ingredient.
3. All About Ratios - a Quiz
4. All About Ratios - links to several lessons by Cynthia Lanius
5. All About Ratios: (Problem Solving) - A famous Texas chef has a secret recipe for her chili. When people ask her for it, she hands them a card with the complete recipe except for 1 detail. For the missing detail, she gives them a clue. Use ratios to discover the missing ingredient.