The poem's fine, but check out the dance moves/actions to go with it! This is a fantastic idea for teaching regrouping. Wish I was teaching Grade 2!
What is division anchor chart to start division unit
Multiplication Strategies Anchor Chart
Not gonna lie...this is meant for 5th graders but I'm pinning it for the GRE.
how to organize differentiated math groups - free lesson plan templates and check lists
Making The Most of Your Classroom Walls: Maximizing your bulletin boards (and other wall space)
The easiest and and simplest way to help students remember shapes and sides. It’s a must-be for math teaching.