Thinking with Technology
Module 1  Targeting Thinking in the Classroom 

Grade 3 Mathematics The Case of Mrs. Chen's Grade 3 class Mrs. Chen’s Grade 3 class are learning about multiplication. To encourage her learners to deepen their understanding of numbers, Mrs. Chen urged them to look for patterns in the chart and to make conjectures. She asked them, “Do you see any patterns in the charts you are making? Can you make any guesses about any of those patterns?” The class worked in pairs to investigate the multiplication chart. Jesse and Samantha noticed that they could compute 4 x 8 by doubling 2 x 8 and wondered if that worked for other problems. During whole class discussion, Mrs. Chen asked Jesse and Samantha to share what they had noticed with their classmates. She asked several learners to restate the idea and then discussed this process with the class Mrs. Chen: Do you think Jesse and
Samantha’s way of multiplying by 4—by doubling and then doubling again—works with problems other than 4 x 8?”
Mr. Mollo’s Grade 3 class have been studying multiplication. He gave his learners a partially constructed multiplication chart and asked them to complete it. The class worked individually to complete their multiplication charts. He asked them, “Do you see any patterns in the chart you are making? Are there easy multiplication facts that can help you with the harder ones?” Aisha said that she noticed, “The twos were easier than the fours.” Mr. Mollo began asking Aisha a series of questions: Mr. Mollo: How can you use the twos to help you with the fours Aisha? 


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