Addition Using a Number Line
Overview
This is a lesson for teaching 1st graders on how to use a number line to help them with number sense and understanding addition before they learn subtraction. Number lines can also aid in the concept of subraction.
What is a Number Line?
Number Line: A number line is a visual tool to help us understand sequential order. It is a tool to help us understand how we add numbers and later on will aid us in subtraction.
Adding Numbers Using a Number Line
Find the number 4 on the numberline and count how much numbers until you get to 5. (4 is 1 number away from 5) That is how we know that 4+1=5.
The finger is pointing to the number 8 and the number circled is 14. 8+__=14?
Have students count the number line until they get to 14. (8+6=14)