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Online Math Resources for Students

Useful Online Resources Available at No Cost ~ NOTE: Some Illuminations games require you to click "Run" on a popup before the game will start.


Algebra Activity Sites

Algebraic Transformations

Explore commutativity and associativity within a geometric situation


Pan Balance—Expressions

Investigate the concept of equivalence by "weighing" numeric and algebraic expressions.

Pan Balance—Numbers

Find equivalent numerical expressionsusing a balance scale.


Pan Balance—Numbers

Find equivalent numerical expressionsusing a balance scale


Pan Balance—Shapes

Explore relationships among weights of various objects by placing them on either side of a balance scale


Roots and Powers

Some problems require the aid of a calculator, while others encourage the learner to work the problem "on paper."


Counting/Number Activity Sites


Bobbie Bear

Use counting trategies to make as many outfits for Bobbie Bear as you can, using different colored shirts and pants.



Explore the number of chairs needed when tables are arranged in a restaurant.


Electronic Abacus

Explore an abacus model for representing numbers and performing addition.


Operations Activity Sites


Around the World in 80 Seconds

Help Maggie fly around the world. Pick addition, subtraction, multiplication, division or a mix of all four.



Dude’s Dilemma

Help rescue Maggie's dog, who is trapped on a rooftop! You can rescue him by answering addition, subtraction, multiplication, division.


Primary Krypto

Use five number cards andarithmetic operationsto create the "target" number in this fun math game.


Factor Game

A game that exercises yourfactoring ability. Test your skills against a human or the computer.



Divide numbers into two factors, and build arrays to represent each factorization.


Product Game

Exercise your skill with factors and multiples.


Determine the Missing Operation Study Jams


Times Table

Practice multiplying single-digit numberswith this interactive multiplication table.


Order of Operations with Integers

This is a set of integer operations that involve combinations of addition, subtraction, multiplication, and division.


Flashcards for Basic Arithmetic

Flashcards for alloperations, organized by level.


Periods of Place Values


Operations with Signed Numbers

Use these "flash cards" to work with an endless list of signed-number problems--addition, subtraction, multiplication, and division of both positive and negative numbers.


Deep Sea Duel

Play a strategy game that requires you to select cards with a specified sum before your opponent.


Operations with Whole Numbers

A complete set of activities featuring arithmetic operations with whole numbers.


Mastering Decimal Fractions

This is a complete set of endless drills with decimal arithmetic.


Rounding Decimal Fractions




Play a matching game with different representations of equivalent items

— match quantities to their numerals, shapes to their names, or fractions to decimals and percents.


Equivalent Fractions

Create equivalent fractions

by shading squares and circles.



Fractions, Fractions, Fractions

This is version 2.0 of the popular fractions "flash cards." Fractions

are learned by looking at a lot of examples and they are mastered by doing a lot of problems.


Fractions Study Jams



Free Ride

Use this applet to explore fractions

using the context of a bicycle and gear ratios.


Working with Percents

Practice percent problems, converting between decimals and percents, and determining parts and rates


Fraction Game

Explore relationships among fractions while playing this interactive game.


Fraction Model

Explore different representations for fractions.


Geometry Activity Sites


Angle Sums

Explore the sum of the interior angle measures for various polygons.


Paper Pool

Shoot a pool ball so that it continually bounces off the sides of a pool table at a 45°angle.


Area Tool

Investigate how changes in the base and height of trapezoids, parallelograms, and triangles affect their area.


Interactive Geometry Dictionary: Areas in Geometry

Understand and investigate the area of the rectangle, parallelogram and triangle.


Circle Tool

Compare thecircumference and areaof a circle to its radius and diameter.


Fractal Tool

Explore iteration and patterns in shapes and numbers with fractals.


Geometric Solids

Manipulate various geometric solids. Color the solid to investigate properties such as the number of faces, edges, and vertices.


Turtle Pond

Estimate length and angle measure while guiding a turtle to a pond.


Patch Tool

Design a pattern using geometric shapes.


Perimeter, Area, and Volume of Common Geometric Figures


Computing Pi

Compare two methods for computing pi.


Proof Without Words: Pythagorean Theorem

Watch a dynamic, geometric "proof without words" of the Pythagorean Theorem.


Scale Factor

Use this applet to investigate how changes in the scale factor influence the ratio of perimeters and the ratio of areasbetween two figures.


Shape Cutter

Draw and cut shapes, then use slides, turns, and flips to move the cut pieces around.



Shape Sorter

Sort shapes according to their properties using Venn diagrams.



Shape Tool

Draw, color, paste, slice, rotate, reflect, expand, and contract various shapes.



Tessellation Creator

Create patterns to cover the screen using regular polygons.



Cube Nets

Examine various two-dimensional figures to determine which ones can be folded into a cube.



Determine the volume of a box by filling it with cubes, rows of cubes, or layers of cubes.




Graphing Activity Sites


Bar Grapher

Create a customized bar graph with your own data, or display a bar graph from an included set of data.



Box Plotter

Create a customized box plot with your own data, or display a box plot of an included set of data.


Circle Grapher

Create a customized circle graph with your own data, or display a circle graph from an included set of data.


State Data Map

Use color-coding to represent state information, such as population, area, and gasoline usage.



Introduction to Graphing

Here is a selection of graphic activities, from plotting points to plotting linear equations.



Histogram Tool

Create a customized histogram with your own data, or display a histogram from an included set of data.


Isometric Drawing Tool

Create dynamic drawings on isometric dot paper. Draw figures using edges, faces, or cubes, and then shift, rotate, color, decompose, or view them in 2-D or 3-D.


Line of Best Fit

Use this applet to plot a set of data and determine a line of best fit.



Linear Regression

Investigate a regression line and determine the effects of adding points to a scatterplot.



Mean and Median

Investigate the mean, median, and box-and-whisker plot for sets of data that you create.





Time, Speed, and Distance Activity Sites


Distance to Horizon

Investigate the relationship between your height above the Earth and the distance you can see to the horizon.


Sound Sketch Tool

Sketch and quantify sound using two different representations.



Vector Investigation: Boat to the Island

Adjust the magnitude and direction of a velocity vector to "drive" a boat.


Vector Investigation: Dual Vector, Airplane Storm Chaser

Adjust the magnitude and direction of a velocity vector and a wind vector to "fly" a plane.


Word Problems: Time, Speed, and Distance





Probability Activity Sites



Simulate the spread of a wildfire using aprobability applet.



Adjustable Spinner

Create a spinner and examine the experimental and theoretical outcomes for a specified number of spins.



Random Drawing Tool—Individual Trials

Explore the relationship between theoretical and experimental probabilities.



General Math Skills Activity Sites


Math Maven’s Mysteries


Math Hunt


Cool Math (Grades K-12)

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