4.NBT.1 and 5.NBT.1 can be really tricky standards to teach! Sometimes students have difficulty understanding that the value of a number is different based on the place it is in. I created these arrow manipulatives to help students see when how a number can be 10x, 100x, 1,000x, and 10,000x larger or smaller. There are also fractional arrows for fifth graders and decimal point manipulatives as well.
Students build the numbers on the work mats and then use the arrows to compare the sizes of the numbers.
What are teachers saying:
These were so life changing for my class! It REALLY helped them visualize the concept which led to them understanding.
These were so life changing for my class! It REALLY helped them visualize the concept which led to them understanding.
Great for kinesthetic learners and really helped many of my students finally “get it” once they could see what happens when multiplying or dividing with powers of 10!
Check out this video to see how it works!