On the fourth day of school, I assigned my college algebra students the Real Number Line Project.
My inspiration came from Matt Coaty’s Real Number Line Project.
I even stole the name of the project. The previous day, I had introduced the real number system. We spent an entire class period classifying numbers as natural numbers, whole numbers, integers, rational numbers, and irrational numbers. I wanted students to synthesize this information on their own.
So, I modified the project I linked to above for my college algebra students. Students were required to include so many natural numbers, whole numbers, integers, rational numbers, and irrational numbers. We had also just finished reviewing absolute value, so I had students include 3 pairs of numbers with the same absolute value. Interestingly, this proved to be trickier for my students than I had anticipated.
My instructions are here:
These are the results I got:
In retrospect, I should have given my students larger pieces of paper and markers. The number lines they produced were smaller than I had hoped, but it’s my fault not theirs. I was looking for something to decorate my classroom with. They were simply completing an assignment.
This project did spark some great conversations and questions. So, it is definitely worth doing. I will likely tweak the instructions before doing this again to clarify exactly what I am looking for.
Free Download of Real Number Line Project
More Activities for Teaching the Real Number System
- Real Number System Card Activity
- Always Sometimes Never Dice Activity for Real Number System
- Rational and Irrational Numbers Exploration Activity
- Real Number System Nesting Boxes
- Real Number Line Project
- Subsets of the Real Numbers Graphic Organizer
- Properties of Real Numbers Foldable
- Properties of Real Numbers Graphic Organizer
- Real Number System Graphic Organizer