Teach your students to think like mathematicians using these three different strategies when solving number stories- numbers, pictures, and words. This document contains 3 posters, each explaining the different strategy, to hang in your classroom. There are also 8 different number story activities where students have to explain how they got their answer using all of the strategies. The number stories involve addition, subtraction, easy multiplication (equal groups of objects), and easy division (sharing equally). These activities can be used at different times throughout the year as you learn about the different operations.