In many classrooms, the math instructional period starts with a warmup. What you do with that math warmup sets the tone for the rest of your math instruction, so let’s make the most of it! This post contains affiliate links, which simply means that when you use...

So, I’m starting out today with a pop quiz. Ha ha. What do the following number sentences have in common? NO calculators! They all equal 120, don’t they? Do you see why? Each of the expressions is really just another way to write 15 x 8. The numbers 15 and...