While teaching my 5th graders a couple of years ago, I was looking for a way to challenge their thinking about multiplication. Many of them "just knew" the traditional algorithm and were able to accurately compute products. However, our conversations seemed lacking. I ran across a method of multiplication that involved drawing lines and challenged my students to notice and wonder about the process. I intentionally left the sound turned down so they would actually have to watch what was happening on the screen. Students were intrigued and asked to watch the video multiple times. Sparking this curiosity led to great conversations involving the meaning of multiplication and procedures with an emphasis on place value. Several of my students wanted to explore further and tested this algorithm of drawing lines with other problems. This experience led me to create additional videos to engage students' curiosity. What do you notice in each video? What do you wonder? What numbers would you try multiplying? Will it work with only whole numbers - or could it work with decimals? What other things would you want to explore? How might you revise this work and show it in a different way? I hope these videos unleash your curiosity!
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AuthorSharing what I'm learning from others. Collaborative experiences and communication are essential in building a shared understanding of mathematics! Archives
September 2018
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