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7th Grade Mathematics Skills

Number & Operations | Algebra | Geometry | Measurement | Data Analysis | Review Help
Links verified 10/31/07
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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. Composite and Prime numbers instruction and review, practice, and a quiz &
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. Math Baseball - [this link opens on a new page] Complete the Number Sentence. - All Operations - Numbers less than 10,000
2. Math Baseball - [this link opens on a new page] Complete the Number Sentence. - Division - Numbers less than 10,000
3. Math Baseball - [this link opens on a new page] Complete the Number Sentence. - Multiplication - Numbers less than 10,000
4. Math Facts -Timed math facts, or select practice mode without the timer
5. Math Mayhem - A fast paced program where you can select addition problems. Most are two digit problems.(Warning: turn sound to mute - this activity gets very loud!)
6. Math Mastery - Select subtraction and practice your facts!
7. Mental Math - Select an operation to practice your skills
8. What number would complete this sentence? - what number would complete the equation? - instruction and review, practice, and a quiz &
9. Word problems - adding and subtracting fractions
10. Fractions
    1. Converting Fractions, Decimals, and Percents - from Fact Monster
    2. Divide fractions - (using circles) this will show graphically how the divisor will fit into the dividend a whole number of times
    3. Dividing fractions - Fraction Bar -This is a very versatile tool that can be used to illustrate a variety of number operations.
    4. Equivalent Fractions - find the fraction that is equivalent to the fraction given
    5. 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!
    6. Fraction Practice - [this link opens on a new page] All operations, mixed practice - (explanations given for wrong answers)
    7. Fraction Decimal Conversion - [this link opens on a new page] a Quia matching quiz
    8. Fraction Decimal Conversion - [this link opens on a new page] another Quia matching quiz
    9. Fraction Decimal Conversion - [this link opens on a new page] a Quia concentration style quiz
    10. Fractional Distances - find Grampy by entering a fractional distance - (includes mixed numbers and various fractions)
    11. Fractions Converted to Percent and Decimals - an eleven question quiz from McGraw Hill Ryerson.
    12. Math at the Mall - practice percentages and finding the best deal while shopping at a virtual mall
    13. Multiplying and Dividing Fractions - online quiz
    14. Practice Converting Percent to Fractions - instruction and review, practice, and a quiz &
    15. Rename Fractions in Lowest Terms - practice in renaming fractions
    16. Unstated Information in Fraction Problems - use the information provided to find the unstated information
    17. Worksheet Generator - Reducing Fractions to Lowest Terms - You decide on the number of problems, the difficulty and whether or not to include improper fractions
11. Decimals
    1. Adding with decimals - Addition of numbers with three decimal digits
    2. Addition with Two decimals - check mark appears if answer is correct
    3. Comparing fractions and decimals - interactive game
    4. Complete the number sentence - [this link opens on a new page] All operations with decimals
    5. Decimal addition - Push the green blocks into the holes to make the target number.
    6. Dividing Decimals - [this link opens on a new page] Complete the number sentence
    7. Division of Decimals - [this link opens on a new page] Divide with 2 decimals
    8. Division of Decimals - [this link opens on a new page] Divide with 3 decimals
    9. Multiplying and Dividing with Decimals - online quiz
    10. Multiplying with decimals - [this link opens on a new page] Multiplying numbers with two decimals
    11. Rounding off - round numbers to significant decimal places
    12. Spy Guys Interactive - Decimals - Click Skip Intro, then select Lessons, and then click on Lesson 1
    13. Subtracting with decimals - Subtraction with one decimal digit
    14. Subtracting with decimals - Subtraction with three decimal digits

1. Decimals
   1. Fractions, Decimals or Percent - two are given, you supply the third
   2. Spy Guys Interactive - Decimals - Click Skip Intro, then select Lessons, and then click on Lesson 1
   3. Spy Guys Interactive - Solving Problems with Decimals - Click Skip Intro, then select Lessons, and then click on Lesson 5
2. Integers
   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. Spy Guys Interactive - Understanding Integers - Click Skip Intro, then select Lessons, and then click on Lesson 6
3. Mixed Numbers
   1. Spy Guys Interactive - Improper Fractions & Mixed Numbers - Click Skip Intro, then select Lessons, and then click on Lesson 2
4. Percent
   1. Calculate percent - Discover relationships between fractions, percents, and decimals
   2. Finding a percent of a quantity - online quiz
   3. Percents and Wholes - online quiz
   4. Percent Game - [this link opens on a new page] FunBrain site
   5. Shopping at Troy's Toys - percent shopping
   6. Spy Guys Interactive - Percent - Click Skip Intro, then select Lessons, and then click on Lesson 4
   7. Using percents - online quiz
5. Scientific Notation
   1. Converting Standard Numbers to Scientific Notation - instruction and review, practice, and a quiz &
   2. Converting from Scientific Notation to Standard Numbers - instruction and review, practice, and a quiz &
   3. Comparing Scientific and Standard Notation Numbers - instruction and review, practice, and a quiz &
   4. Converting Decimal Numbers to Scientific Notation - instruction and review, practice, and a quiz &
   5. Converting from Scientific Notation to Decimal Numbers - instruction and review, practice, and a quiz &
   6. Converting Fractions to Scientific Notation - instruction and review, practice, and a quiz &
   7. Practice with Scientific Notation - Pencil and paper may be needed - [Answers provided]

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 - instruction and review, practice, and a quiz &
8. 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.
9. Greater, Less Than, or the Same - Compare these decimals - instruction and review, practice, and a quiz &
10. MathDrill lets your students practice <, >, or =.
11. Review Rules for Working with Rational Numbers - two interactive sections are provided, look for the blue blocks on 4/10/08

1. How do I find the reciprocal of a decimal mixed number? - an answer to a student's question
2. Multiplying and Dividing Rational Numbers - an explanation and a chance to practice
3. Rational Number and its Reciprocal - a step-by-step examination of a problem by Dr. Math

1. Practice Solving Percent Problems - more percent practice
2. Using the Proportion Method to Solve Percent Problems - practice problems at the end

1. Algebra: Order of Operations - [this link opens on a new page] a quiz from Quia on 4/19/08
2. Calculations Using Order of Operations - AAA Math lesson and practice problems &
3. Division and Order of Operations - matching game
4. Evaluating Algebraic Expressions - Order of Operations/P.E.M.D.A.S.
5. Exploring Order of Operations - [game] click on the operations in correct order
6. Flintstone Example - four characters try to solve a problem, four more examples at the bottom of the page. on 4/19/08
7. Learning Activity: Order of Operations - interactive lesson
8. Math Quiz Game: Jeopardy style - Jeopardy style PowerPoint review game
9. Order of Operations - Math Goodies from Ms. Glosser
10. 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.
11. Order of Operations - a 16 slide PowerPoint show with practice problems
12. Order of Operations - a 13 slide PowerPoint show which makes good use of animation
13. Order of Operations: What to Do First - a 25 slide PowerPoint show
14. Order of Operations Game - Drag the numbers and the operation signs on the wood board to complete the equality
15. Order of Operations Game - from MathFrog
16. Order of Operations Pretest - ten multiple choice questions
17. Order of Operations Tutorial - introduction, explanation, examples and a workout of sample problems
18. Order of Operations Tutorial - work through several examples on 4/19/08
19. Order of Operations with Exponents - Math Goodies from Ms. Glosser
20. Order of operations game from Funbrain.com [this link opens on a new page] (easier levels are available)
21. Order of Operations Online Worksheet - ten problems, answers available
22. Practice with Order of Operations - ten practice problems [answers available]
23. Practice with Order of Operations - Get out your pencils and calculators and give these a try!

1. Algebra - Fun with Calendars
2. Basic Algebra - Lesson 5 - Expressions from Sentences
3. Disaster Math - Six sets of interactive word problems: Earthquake Math, Hurricane Math, Tornado Math, Wild Fire Math, Winter Storm Math, and Flood Math.
4. Let's Do Lunch - [this link opens on a new page] Students use a menu to order lunches that meet various criteria. (Author - Sandi King)
5. Math at the Mall - practice percentages and finding the best deal while shopping at a virtual mall
6. Million Dollar Mission - a mathematics fantasy
7. Ms. Lindquist: The Tutor - A free, web-delivered, intelligent tutoring system for tutoring students in writing expressions for algebra word problems. This site is sponsored by NSF.
8. Shopping at Troy's Toys - percent shopping
9. Solving Math Word Problems - A Study Guides and Strategies web site posted by the University of St. Thomas
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. Taming Word Problems - a WebQuest
12. Translating Word Problems - The hardest thing about doing word problems is taking the English problem and translating it into math. A lesson from Purplemath, a great Algebra resource
13. Word Problems For Kids - This is a set of carefully selected problems (grade 5 to Grade 12) which can help you improve your problem solving skills.

1. Fermi Questions Library - Fermi questions use estimation procedures to solve questions like "How many jelly beans fill a one-liter jar?"
2. Comparison Estimator - Similar to Estimator but compares two sets of objects.
3. Disaster Math - Six sets of interactive word problems: Earthquake Math, Hurricane Math, Tornado Math, Wild Fire Math, Winter Storm Math, and Flood Math.
4. Estimating by Rounding - Addition with regrouping - instruction and review, practice, and a quiz &
5. Estimating by Rounding - Subtraction with regrouping - instruction and review, practice, and a quiz &
6. Estimating Sum - No hints or clues given - instruction and review, practice, and a quiz &
7. Estimation Strategies - several strategies are discussed on 4/18/08
8. Estimator - Practice estimation skills by determining the number of objects, length, or area. (parameters: error tolerance)
9. Fermi Questions Library - Fermi questions use estimation procedures to solve questions like "How many jelly beans fill a one-liter jar?"
10. How Big are Things - a printable cube to be used in making size estimations [several versions] on 4/18/08
11. How to Simplify a Number - part of being approximate is simplifying numbers
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 on 4/18/08
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. Comparing two numbers on a number line from Web Math. Learn how to compare two numbers using a number line. Type each number into the boxes provided, then click "Show Me!"
2. Line Jumper - [this link opens on a new page] Click on the number line at the correct answer.
3. Number Line Bounce - Instructions on how to play are included at the top of the window.
4. Number Line: Comparing and Ordering Integers - practice with an Interactive Adventure with Deep Sea Carl - Carl is diving in the Great Barrier Reef off the coast of Australia. These waters are shark infested. Keep Carl safe by determining how many feet below sea level Jaws Daddy is.
5. Rational Numbers on a Number Line - [designed for 6th grade] on 4/10/08
   1. Practice problems to go with the lesson
6. Rational Numbers on a Number Line - a 1 page document from Glencoe Publishers; with explanation, examples, and practice problems on 4/10/08
7. Rational Numbers on a Number Line - a 13 page document with examples and sample problems on 4/10/08
8. Rational Numbers on a Number Line - a 22 slide PowerPoint show with good sample questions
9. Visualizing Numbers on an Interactive Number Line - instructions for using this activity are included

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. The Importance of Ratios and Proportions - this comes under the heading of a perfect answer to "Why do I have to learn this?" - how a stock market trader benefits from ratio and proportion
9. Interpreting and Applying Proportions - online quiz
10. Learning ratios and proportions through scale drawings - a text lesson plan
11. Math for Morons Like Us - a ThinkQuest entry on ratio
12. Nutshell Math: Ratios and Proportion - video lesson with examples and sample problems
    1. You Tube video of the same lesson - Instructor: Ms. Jenkins
13. Percentages and Proportions - online quiz
14. 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 &
15. Percent with a Calculator - after the lesson there are problems to work
16. Practice with Ratios - online quiz
17. Proportion Practice Test - thirteen multiple choice questions on 4/10/08
18. Proportions and Ratios - good explanation of means and extremes from Free Math
19. Rags to Riches: Ratio and Proportion Quiz - [this link opens on a new page] quiz at Quia
20. Rates, Ratios, and Proportions - [this link opens on a new page] a two person quiz from Quia
21. Ratio/Proportion Problems from Ask Dr. Math - three pages of links to real-world problems
22. Ratio & Proportion - math review practice exercises
23. 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.)
24. Ratio and Proportion - explanation and examples on 4/10/08
25. Ratio and Proportion - introduction, in depth explanation, examples and a workout of ten problems on 4/10/08
26. Ratio and Proportion Quiz - play this game to practice writing ratios
27. 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?
28. 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.
29. Ratios - a six page module from Purple Math on 4/10/08
30. Ratios and Proportions - explanation with four sample problems on 4/10/08
31. Ratios and Proportions - an interactive lesson in a slide show format
32. Ratios and Proportions - an 18 slide PowerPoint show
33. Ratios and Proportion Review - a 12 slide PowerPoint show
34. Review of Proportion - examples and practice problems
35. Review of Ratios - examples and practice problems
36. Skillwise: Ratio and Proportion - five part module; fact sheet, game, quiz, activity and worksheet
37. Teaching Ratios and Proportions - suggestion for teachers and parents
38. Using Proportions - online quiz

1. Number & Operations (Grades 6 - 8)

1. Analyzing Numeric and Geometric Patterns of Paper Pool - an activity from Illuminations, the NCTM site.
2. Calculating the nth Term - how to develop a formula that can be used to calculate these terms
3. Create your own pattern - Drag shapes to create a pattern - (Instructions on how to use this page in your classroom)
4. Mystery Operations - In this activity the computer makes up a mystery operation, and you have to figure out what the operation is. You give the computer two numbers to calculate, and it tells you the answer.
5. Number Cracker - [this link opens on a new page] Guess what number comes next in the pattern?
6. Number Cruncher - Lists input and output in a table and will not let the user attempt to guess the rule on without at least having two data points.
7. Patterns in Geometry - online quiz
8. Patterns - Figure out the patterns, if you can!
9. Spy Guys Interactive - Summarizing/Extending Patterns - Click Skip Intro, then select Lessons, and then click on Lesson 8
10. Whole Number Cruncher - Similar to "Number Cruncher" but only generates multiplication and addition functions to avoid outputting any negative numbers
11. Writing Rules for Patterns - online quiz

1. Ambleweb Function Machine - students identify what process was used to produce a sequence of numbers (twelve processes available)

1. Vehicle Stopping Distance And Time - use data to reach conclusions - use their Vehicle Stopping Distance Calculator to do actual model calculations

1. Spy Guys Interactive - Balancing Equations - Click Skip Intro, then select Lessons, and then click on Lesson 11
2. Symbols of Inclusion - simplify each expression and choose the correct comparison symbol
3. Translate Sentences into Equations
4. Translating Word Problems - lesson with links to practice types of word problems
5. Verbal Reasoning - Challenges students to clearly understand a problem and think through the solution!
6. Word Problem Practice - Problems in addition, subtraction and more (Warning: many pop-up ads on this site)

1. Spy Guys Interactive - Balancing Equations - Click Skip Intro, then select Lessons, and then click on Lesson 11

1. Function Machine - Students investigate very simple functions by trying to guess the algebraic form from inputs and outputs.
2. Graphing Linear Equations - an Internet project
3. Linear Equation Solvers - Practice Linear Equations! Improves your test scores!
4. Linear Equation Solver from Algebra.com
5. Linear Equation Solver - a pop-up window allows users to specify the number of equations
6. Linear function - move your cursor to the green block to select step 1
7. Linear function and Graph - move your cursor over the green block to see lesson 1 or lesson 2
8. Linear Function Machine - Students investigate linear functions by trying to guess the slope and intercept from inputs and outputs.
9. Positive Linear Function Machine - Students investigate linear functions with positive slopes by trying to guess the slope and intercept from inputs and outputs.
10. Solving addition and subtraction equations - 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.
11. Solving Linear Equations

1. Step-by-step Internet4Classrooms module on how to produce a scatter plot using Excel

1. Algebra (Grades 6 - 8)

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 on 4/21/08
3. Flips, Slides, and Turns - a manipulative which allows you to view the effect of applying reflection, translation, and rotation transformations on 4/21/08
4. Mathsnet Transformations - [this link opens on a new page] interactive site. a collection of approaches to this topic to offer you a choice. All require Java and a recent browser.
5. Motion in Geometry - a 127 slide PowerPoint show on 4/21/08
6. Sam's Similar Shapes - [this link opens on a new page] Students learn about shapes that are different sizes but the same shape. (Author - Paulette Boggs)
7. Spy Guys Interactive - Slides and Flips - Click Skip Intro, then select Lessons, and then click on Lesson 17
8. Transformations - [designed for 7th grade] how to identify, describe, perform, and analyze transformations involving translations, reflections, and rotations on 4/21/08
9. Transformations - [designed for 7th grade] a 21 slide PowerPoint show produced by Holt, Rinehart and Winston on 4/21/08
10. Transformations - a Flash movie which demonstrates flips, slides, and turns on 4/21/08

1. Angles - practice with acute, obtuse and alternate angles
2. Classifying Angles - online quiz
3. Equilateral, Isosceles, and Scalene Triangles - choose the most restrictive term
4. Giraffe Angles - Draw, and label as many angles as you can that are formed by their bodies, or are parts of their bodies. Also try Shark Angles. (rated for 5th grade, but provides an interesting way to practice)
5. Pythagorean Explorer - Students find the length of a side of a right triangle by using the Pythagorean Theorem, and then check their answers.
6. The Pythagorean Theorem - online quiz
7. Spy Guys Interactive - Working with Angles - Click Skip Intro, then select Lessons, and then click on Lesson 16
8. Squaring the Triangle - learn about how the Pythagorean Theorem works, through investigating the standard geometric proof. Parameters: Sizes of the legs of the triangle.
9. Triangle Explorer - learn about areas of triangles and about the Cartesian coordinate system through experimenting with triangles drawn on a grid.
10. Triangle Identification - identify the triangle given its angles - instruction and review, practice, and a quiz &
11. Triangle Identification - identify the triangle given its number of sides - instruction and review, practice, and a quiz &
12. Triangles Side-By-Side - [this link opens on a new page] Students use geometric vocabulary to describe properties of triangles. (Author - Carolyn Garner)

1. Congruent Triangles - The most popular congruent figures are triangles!
2. Creating Congruent Triangles - Materials: rulers and protractors
3. Definition of Congruence - Objects that are exactly the same size and shape are said to be congruent.
4. More Practice with Congruences - Answer the following questions dealing with congruent figures.
5. Pete's Polygons - [this link opens on a new page] Students learn about closed figures called polygons. (Author - Paulette Boggs)
6. Polygon Playground - arrange designs with online movable polygons - hundreds of polygons to drag anywhere you want
7. Practice with Congruence - answer questions dealing with congruent figure
8. Protractor - learn how to position and read a protractor in order to measure an angle, and how to use either scale on the protractor

1. Identify Polygons - Names of polygons by number of sides and angles - instruction and review, practice, and a quiz &
2. Name that Polygon - Identify name of given polygon components - instruction and review, practice, and a quiz &
3. Patterns for Solid Figures - Complete to make a cube figure
4. Shape Explorer - Students are shown shapes on a grid and asked to calculate areas and perimeters of the shapes.
5. Interactive Shapes - [this link opens on a new page] A wide range of mathematics is covered, including all four key stages, from polygons to circle theorems.

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 - students type ordered pairs in the blocks on this interactive PowerPoint show
3. 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
4. General Coordinates Game - Students investigate the Cartesian coordinate system through identifying the coordinates of points, or requesting that a particular point be plotted.
5. Graphing Applet - interactive site which identifies the ordered pairs of points students click on - Advanced version of the same applet on 4/20/08
6. Graphing Ordered Pairs - Make up any ordered pair of the form (x, y). Write it on paper. Use the mouse arrow and click the point on the coordinate graph below.
7. Grid Graph - [this link opens on a new page] Students identify and plot points on a grid. (Author - Paulette Boggs) [Quadrant 1 only]
8. Maze Game - Students use their knowledge of points on a graph to move a robot to the target, while avoiding mines.
9. Ordered Pairs - linear equations
10. 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.
11. 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.
12. Simple Plot - enter ordered pairs then generate a graph
13. Spy Guys Interactive - Using Ordered Pairs - Click Skip Intro, then select Lessons, and then click on Lesson 18
14. Stock the Shelves - [this link opens on a new page] You are the clerk. Stock the shelves using a special coordinate plane.
15. 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.

1. Sum of Angles in a Triangle - students can explore this concept by moving the vertices of the triangle with pressed mouse button

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. Quick Images - In the following Interactive Activity, you'll stretch both your visualization and drawing muscles. (click on Show Shape to begin the activity)
9. 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. Geometry (Grades 6 - 8)

1. Practice converting from one metric unit to another with this java applet (length, area, volume, mass, or time units)

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. Measure it - [this link opens on a new page] Practice using a ruler - inches and centimeters
4. Perimeter of a Square - Calculate the perimeter of a square with given dimensions - instruction and review, practice, and a quiz &
5. Perimeter of a Rectangle - Calculate the perimeter of a rectangle with given dimensions - instruction and review, practice, and a quiz &
6. Measurement Equivalents - Match game with standard equivalent measurements, such as pounds, ounces, pints, cups, etc.
7. Perimeter Explorer - Students are shown shapes on a grid after setting the area and asked to calculate perimeters of the shapes.
8. Spy Guys Interactive - Area and Perimeter - Click Skip Intro, then select Lessons, and then click on Lesson 12
9. Spy Guys Interactive - Relating Area and Perimeter - Click Skip Intro, then select Lessons, and then click on Lesson 13
10. Spy Guys Interactive - Surface Area of Prisms - Click Skip Intro, then select Lessons, and then click on Lesson 14
11. Spy Guys Interactive - Volume and Displacement - Click Skip Intro, then select Lessons, and then click on Lesson 15

1. Animated Proof of the Pythagorean Theorem
2. Area of an Irregular Rectangle - calculate the area of each figure given
3. Calculating Areas - online quiz
4. Challenge Exercises: Circumference & Area of a Circle
5. Circle, Sphere & Cylinder Calculator
6. Lesson on Perimeter of Polygons
7. Measuring Around - find circumference, online quiz
8. The Pythagorean Theorem, Distance Formula and Intro to Trigonometry - other practice activities

1. Animal Weigh-In - Do you know your kilograms from your pounds? Interactive game
2. Area Explorer - Students are shown shapes on a grid after setting the perimeter and asked to calculate areas of the shapes.
3. Areas and Squares - online quiz
4. Calculate the Area of the Rectangle - [this link opens on a new page] from FunBrain
5. Calculate the Perimeter of the Rectangle - [this link opens on a new page] from FunBrain
6. Calculating Areas - online quiz
7. Lesson on Perimeter of Polygons