Placing Negative Numbers on a Number LineYour students will have used a number line before, but it may not have included negative numbers. Your students will also have had experiences with reallife applications which could be modeled by the set of integers. Spend some time discussing applications involving opposite directions, such as walking forward or backward, temperature going up and down, or profits and losses in a business. This will help your students relate to the concept of negative numbers. Materials: large model of a number line from 10 to +10 with the numerals for 0 to 10 written beneath their marks and the marks for the numbers 1 to 10, but not the numerals (See the number line below); strips of paper for students to make their own number lines

on a Number Line
with Negative Numbers 



Preparation: Construct a large number line and post it where students can see it. Cut out strips of paper for your students to construct their own number lines.
Prerequisite Skills and Concepts: Students should have worked with number lines before. They should be able to locate an unmarked number on the number line. They should also be able to add and subtract whole numbers using the number line. Show them the number line you made. Tell them there are other numbers to the left of zero.




Tell them to write neatly so they can read their number lines and to be careful to place the numbers appropriately on their number line, so that it looks like the one up front. 
