## Search Results

### 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.

### Dynamic Paper

Pre-K-2, 3-5, 6-8, 9-12

Need a pentagonal pyramid that's six inches tall? Or a number line that goes from ‑18 to 32 by 5's? You can create all those things and more! Place the images you want, then export it as a PDF or as a JPG image.

### Pan Balance – Expressions

3-5, 6-8, 9-12
Using this interactive tool, you can practice arithmetic and algebraic skills, and investigate the important concept of equivalence.

### Trigonometric Graphing

9-12
Explore the amplitude, period, and phase shift by examining the graphs of various trigonometric functions.

### A Geometric Investigation of (a + b)2

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

### Name Letters

3-5, 6-8, 9-12
Use this activity to practice solving systems of equations. Use this tool to check students' answers.

### Proof Without Words: Completing the Square

9-12
This applet gives a proof of completing the square "without words" using geometry.

### Geogebra:Dynagraphs

6-8, 9-12

Explore relationships between inputs and outputs by manipulating interactive double number lines.

This interactive is optimized for your desktop and tablet.