A basic number line. I have used it with year 7 to 6th form to illustrate points, but am sure it could be used earlier on too. You can zoom in and out as well as moving up and down. I have used it ...
Master Directed Numbers with the Ultimate Visual Teaching Tool! Struggling to help students visualize the difference between (-3) + (+5) and (-3) - (-5)? This Interactive Number Line is a professional ...