Lesson Plan: Part–Whole Bar Models: Numbers up to 100 Mathematics • 2nd Grade
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to solve one-step addition and subtraction problems with numbers up to 100 by drawing a part–whole bar model.
Objectives
Students will be able to
- model word problems with part–whole bar models,
- write an equation to find the missing part or whole in a bar model,
- decide whether to use addition or subtraction to solve a word problem,
- solve one-step word problems.
Prerequisites
Students should already be familiar with
- writing addition and subtraction equations,
- adding and subtracting two-digit numbers.
Exclusions
Students will not cover
- numbers over 100,
- two-step word problems.
