## Reflection: Standards Alignment Taking it Back to the Old School - Section 1: Opener

When thinking back upon when I learned how to multiply two-digit numbers I can only remember the standard algorithm.  I know I was never taught how to do multiplication by drawing a box with a bunch of lines.  That’s preposterous!  So for me, I call the standard algorithm ‘old school.’  It’s how I learned, it’s the only way my parents know how to do multiplication, so it must be old.  Haha.  But, when looking back on my understanding of multiplication I don’t think I could have explained why you put a zero in the ones place when you create a new line.  However, I’m pretty sure my students would be able to come up with an explanation because of the partial products method.  They could rationalize that the zero is needed because you’re not just multiplying by the ones anymore, you start to multiply by the tens which means the value changes.

I think one of the biggest differences about how I learned math and how I teach math is that I focus on giving the students an understanding of what they are doing so that they are not just going through the motions and memorizing steps.  Although memorizing steps is part of it, the understanding is the more important.

Old School
Standards Alignment: Old School

# Taking it Back to the Old School

Unit 1: Operations with Decimals and Whole Numbers
Lesson 8 of 22

## Big Idea: Old school multiplication is making a come back!

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Standards:
Subject(s):
Math, division, decimal operations, multiplication
55 minutes

### Erin Doughty

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