Lesson Plan: Adding to Subtract Numbers on a Number Line up to 1,000
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to count forward on number lines to find the difference between two numbers up to 1,000.
Objectives
Students will be able to
- count forward along a number line to find the difference between two numbers,
- use partitioning to help subtract across a 10 or 100,
- apply knowledge of subtracting using a number line when solving word problems.
Prerequisites
Students should already be familiar with
- subtracting three-digit numbers by counting backward on a number line,
- partitioning to help with calculations.
Exclusions
Students will not cover
- subtracting three-digit numbers without using a number line,
- subtracting from four-digit numbers.