Thursday, October 11, 2012

The Mystery of Multiplication

Multiplication has come a long way since we were in elementary school. We were handed a list of facts and told to memorize. I don't think we even questioned why 4 x 9 equaled 36. We just accepted it.

Things are so different today. Kids not only have to know that 4 x 9 equals 36, they also have to know why. In other words, how do you know? Prove it to me. Which is perfect for my math motto: PROVE IT! DON'T JUST CHOOSE IT!

Our standards no longer just require students to answer the basic fact. The new standards require students to show what 4 x 9 looks like using groups of objects, arrays, and repeated addition. I have created the following products to help my students master these concepts:

I use this Meaning of Multiplication PowerPoint presentation over a week long period. I take each meaning one day at a time. I embed videos and online games into it, so that we can just click and go.

I also use The Mystery of Multiplication lesson and activity packet to provide lessons, printables, games, activities, graphic organizers, and more.







6 comments:

  1. I love mathematics and have trouble understanding why aptitudes rise and fall in developed nations over a few years. It leads me to question the survey methods, of course. :)
    Multiplication games

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  2. I'm just stopping by to say hello to you. I just started blogging last week and have been searching for other third grade blogs. I teach third grade in Washington State...3rd is my favorite of all time. I am your new follower so I just wanted to introduce myself. Hopefully we can all get to know each other in the next few months. Take Care!

    Stephanie Ann
    Sparkling in Third Grade

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    1. So glad you have dived into the blogging world. Beware it is addicting! I have 3 right now. Thanks for following!

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  3. WOW! What a great presentation! It must have taken you a while to put together - but I bet it was worth it when you presented it!

    Congratulations! I am your newest follower!

    Alison
    Teaching Maths with Meaning

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    1. Thank you! My kids really enjoyed it and it thoroughly helped them with their understanding of multiplication. Thanks for following me!

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