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 Fibonacci Trees March 22, 2017
 Why not count on our fingers? March 18, 2017
 Time, symmetry, and unexpected turns March 16, 2017
 The Piaget Phenomenon March 12, 2017
 Four colors or more? March 10, 2017
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Tag Archives: place value
Drawing stars and triangles
Last week we did several really fun activities from the book A Collection of Math Lessons, A: Grades 13 by Marilyn Burns and Bonnie Tank. Here is an account of one of them. The activity was “How many stars can … Continue reading
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Tagged 6 years old, 7 years old, drawing, fun math, Main Line Classical Academy, place value, second grade
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Sixtyeleven
You probably knew that sixtyseven plus four equals sixtyeleven, but for Katie and Varya this was a source of great surprise and amusement during today’s lesson. We were continuing with adding twodigit numbers, but this time I decided to make … Continue reading
The Value of Place Value
Katie has been able to count until 100 for a while and now may even be able to get up to 1000. However, I realized that she doesn’t actually understand the decimal system and place value (i.e. why are two, … Continue reading