Sunday, October 14, 2012

Singapore Math Method for Compensation Subtraction

After years of doing intervention work with subtraction across a zero, I was so excited when I learned about compensation subtraction.  It's also called constant difference.  It helped so many kids and it wasn't just a trick.  They understood why they were doing it!
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When I taught larger numbers, I generally reverted to the traditional method, or used many steps.  After spending a really fun week in Cleveland, MS, Lon Hayes sent me an email describing this method of compensation subtraction with larger numbers.  Thanks so much Lon!!
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Try this with your class and let me know how it goes!

2 comments:

Mr. C said...

Hello, this is a nice blog. I wanted share my singapore math experince with you. you can read the whole story here: http://www.teachadvice.com/2012/10/singapore-math-experience.html

Bloomer Blowe said...

Very informative.Thanks for sharing your learning experience about compensation subtraction through singapore math method.Keep it up.Singapore math really helps a lot.If you want some tutorials for your kids try the singapore math tutorials.