Our Evaluate Expressions lesson plan details how to solve mathematical equations when a variable can be substituted with an actual value. The lesson also reminds students to use the correct order of operations to solve the problems once they replace the variables with numbers. Relevant vocabulary, like simplify and substitute, is included in the lesson.
Students are asked to solve the same expression several times, substituting a different value for the variable each time, demonstrating their understanding of the lesson.
At the end of the lesson, students will be able to write, read, and evaluate expressions in which letters stand for numbers.
Common Core State Standards: CCSS.Math.Content.6.EE.A.2, CCSS.Math.Content.6.EE.A.5