[Free Registration/Login may be required to access all resource tools.] Graph linear inequalities to find solutions.

Use this tutorial to learn how Cramer's Rule works for 3 x 3.

Students are given the opportunity to visualize and interact with concepts they have already learned, specifically algebraic equations and solving for unknown variables. Students construct a balancing seesaw system (LEGO Balance Scale)...

In this exercise, students practice age word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.