**Guess and check**: A problem-solving strategy that students can use to solve mathematical problems by guessing the answer and then checking that the guess fits the conditions of the problem.

Resources for this term:

Solving Linear Equations in Two Variables

Students solve a problem using two linear equations with two variables and interpret the meaning of algebraic expressions.

Defining Regions Using Inequalities

Students combine linear inequalities, correctly representing them on a graph, to identify a set of solutions.