This is a "Math" Post With Four Pictures!

Posted by Mr. Marchionda on Oct 12, 2009 in Classroom News, Classroom Procedures, For Parents | Comments Off

This post today is for parents, but also a review for my students. In math we have been working with expanded form and with base 10 blocks. Last week we added using the base 10 blocks. this week we are representing the base 10 blocks with expanded form (ie. 146=2100+40+6) in our addition. This is the long way around to the standard algorithm. We will get there, but I want to make sure that we all know exactly what is happening when we regroup. So, today here was the work, 10 problems, and the general solution method that we practiced.

Tomorrow we will be reviewing this and working some more with addition using standard form. Soon enough we will be transitioning into the standard algorithm.

Work:

Solution Sample:

Planner Notes: