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PickAPath
Measurement

Pick-a-Path

3-5, 6-8

Help Okta reach the target by choosing a path from the top of the maze to the bottom. Seven levels with seven puzzles will test your skills with powers of ten, negative numbers, fractions, decimals, and more. How many starfish can you earn?

PersonalNumber
Number and Operations

Personal Number

3-5, 6-8
Find your personal number using your birthday! It is the month + date + year & month × date × year.
IGDSimsonLineOrthocenter
Geometry

IGD: Simson Line - Orthocenter

9-12
Use this tool to explore how the Simson line of a triangle is related to the orthocenter.
IGDPerpendicularBisector
Geometry

IGD: Perpendicular Bisector

9-12
Use this tool to demonstrate how to draw a perpendicular bisector.
AngleBisector ICONn
Geometry

Angle Bisector

9-12

This interactive demonstrates how to bisect an angle.

AGeometricInvestigation
Algebra

A Geometric Investigation of (a + b)2

9-12
This interactive demonstrates why (a + b)2 = a2 +2ab + b2.
AlgebraTiles
Algebra

Algebra Tiles

6-8, 9-12
Use tiles to represent variables and constants, learn how to represent and solve algebra problem. Solve equations, substitute in variable expressions, and expand and factor.
IGDDroppingAPerpendicular
Geometry

IGD: Dropping a Perpendicular Line

9-12
Use this applet to show how to drop a perpendicular from a point onto a line.
PatchTool
Geometry

Patch Tool

Pre-K-2, 3-5
Use this tool to design a pattern using geometric shapes.
AreaOfTrapezoids
Geometry

Area of Trapezoids

6-8
Investigate how changes in the base and height of a trapezoid affect its area.
AreaOfParallelograms
Geometry

Area of Parallelograms

6-8
This applet shows the relationship between the area of a parallelogram and the lengths of its sides.
ProductGame
Number and Operations

Product Game

3-5, 6-8
This applet is the Product Game: a fun, interactive game that exercises your skill with factors and multiples.
IGDAreaOfARectangle
Geometry

IGD: Area of a Rectangle

3-5, 6-8
Use this tool to show how the side lengths of a rectangle affect the rectangle's area.
TriangleClassification
Geometry

Triangle Classification

9-12
Use this applet to show how the placement of the third vertex of a triangle affects the classification of that triangle.

Investigating Functions with a Ferris Wheel: Distance vs. Width

Investigating Functions with a Ferris Wheel: Distance vs. Width A Web Sketchpad activity helps students make sense of relationships between quantities, in this case the way that the distance a car travels around a Ferris wheel covaries with its "width" or horizontal distance from the center of the Ferris wheel

Investigating Functions with a Ferris Wheel: Distance vs. Height

Investigating Functions with a Ferris Wheel: Distance vs. Height A Web Sketchpad activity helps students make sense of relationships between quantities, in this case the way that the distance a car travels around a Ferris wheel covaries with its height. <iframe src="/tools/ferriswheel/FerrisWheel_

NameLetters
Algebra

Name Letters

3-5, 6-8, 9-12
Use this activity to practice solving systems of equations. Use this tool to check students' answers.
eEx_5.1 ICON
Number and Operations

5.1 Playing Fraction Track

3-5
Take timed turns racing to the end of each fraction line by moving one or more of your markers to sum to a given fraction value.