Using the problem solving method, this lesson focusses on using mental math and estimation to solve addition and subtraction problems.
There are four parts to my lesson:
1. Moving Your Mind
In this section, the teacher will spend about five to ten minutes to get the student's minds thinking about the concept that will be discussed in the lesson.
2. The Problem
In partners, students work through the problem. This should take approximately twenty minutes.
3. Making Sense Of It
The studen