It wasn’t until a few years after the Common Core was adopted in California did I start teaching students how to round on a number line. Before that, what did I use? Rounding rhymes, tricks,…
Unitizing is not only a mathematical term, but it’s also a business term. Have you ever wondered when businesses ship hundreds of boxes, how do they keep track? By unitizing! The shipping company will unitize…
Teaching second grade has given me a much better understanding of how second graders are prepared for third grade. If you examine the Common Core State Standards for Math, you will see that place value…
By the time students arrive in third grade, the explicit teaching of place value is not reflected in the Common Core State Standards. In fact, place value is very much ignored by the Common Core…
