Level Four

Plasers provides practice in the use of cartesian coordinates and operating with integers. 
Plasers: choose coordinates (+)

Plasers provides practice in the use of cartesian coordinates and operating with integers. 
Plasers: choose coordinates (+)

Visual Linear Algebra presents a visual model to support students in solving linear algebra equations.
Solving linear algebra equations (variable on one side, positive values only)
Solving linear algebra equations (variable on both sides, positive values only)
Solving linear algebra equations (variable on one side, positive and negative values)
Solving linear algebra equations (variable on both sides, positive and negative values)

Modeling Numbers helps users to explore numbers using a variety of representations.
Modeling Numbers: decimals

The Divider helps users solve division problems by partitioning.
The divider: with or without remainders

Design Briefs explores fractions and decimals in the context of proportions of areas.
Playground percentages