Pennsylvania Department of Education
Using Expressions and Equations
Sixth graders analyze expressions and equations. In this algebra lesson, 6th graders write algebraic sentences and solve for an unknown in a one-step equation. This lesson uses the formulas for the perimeter of a square and rectangle as...
Curated OER
Representing the Unknown
Student use mental math to solve linear equations. In this algebra lesson, students solve one and two steps equations. They write expressions using variables to identify the unknown.
Curated OER
Reteach: Solving Decimal Equations
In this decimal equations activity, students review the process to solving decimal equations, then use inverse operations to solve 4 problems, checking with substitutions.
Curated OER
A Point of Intersection
Students factor and solve systems of equation. In this algebra instructional activity, students identify the point of intersection using substitution, elimination and graphing. They write an equation given a system and a graph.
Alabama Learning Exchange
Finding Prime
Fifth and sixth graders explore prime numbers. They work with a partner to build rectangular arrays using twelve tiles. Factor pairs are noted and recorded on graph paper. Pupils construct rectangular arrays with a prime number and...
Curated OER
Reliable Problem Solving Techniques
Students practice the Request-Response-Result problem solving technique. They explore how and when it should be used.