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.
3-5, 6-8
This strategy game requires you to select cards with a specified sum before your opponent (also available on iOS and Android).
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.
3-5, 6-8, 9-12
Using this interactive tool, you can practice arithmetic and algebraic skills, and investigate the important concept of equivalence.3-5, 6-8
Use this tool to strengthen understanding and computation of numerical expressions and equality using a balance scale.
3-5, 6-8
Use this tool to build up to algebraic thinking by exploring how to balance shapes of unknown weight.
9-12
Explore the amplitude, period, and phase shift by
examining the graphs of various trigonometric functions.
9-12
This interactive demonstrates why (
a +
b)
2 = a
2 +2ab + b
2.
3-5, 6-8, 9-12
Use this activity to practice solving systems of equations. Use this tool to check students' answers.
9-12
This applet gives a proof of completing the square "without words" using geometry.
