2gregwelch

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2. Classroom Tips and Tricks
3. 9-Mulitples using Make10 (we continue to wastes MM of hours of student time - plz read)

JDOG, using your method, for 9 x 8, you would have to calculate all the multiples that preceded 8.  That involves almost 30 numbers and 8 calculations.  No way this replaces memorization. Are you f...

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3. 9-multiples using Make10

You’re right, there are a lot of hacks/tips/tricks out there for calculating the 9s.  They are not fast enough to replace memorization.  So..add the wasted time learning these tricks to the time lo...

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3. 9-multiples using Make10

I think there are easy methods/hacks to learn the 2s, 3s, 4s, 5, 6s and 10s.  The suggestion posted was for the 9s so let’s focus on the 9s, ok? I posted a method that makes the 9s easier to calcul...

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3. Order of Operations - using Concepts rather than a confusing Acronym

The goal of the proposed method is to teach the reason and logic that underlies Order of Operations (ie, Mathematics).  Using an acronym (PEMDAS, BODMAS, etc.) does not accomplish that. Acronyms re...

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3. Order of Operations - using Concepts rather than a confusing Acronym

Thank you for your interest in discussing this.  It’s not clear to me whether you are advocating PEMDAS, and if so, how PEMDAS better prepares students for the math topics you bring up.Please take ...

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3. 9-multiples using Make10

Thank you for your reply. Two issues with your 9-multiples method: first, it seems to be a method to list the 9-multiples in sequence - as opposed to getting a specific answer.  This method is simi...