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Recent Posts
 How Many? – A book and a math adventure July 27, 2018
 Naming Numbers at Bedtime April 16, 2018
 Main Line Math Festival on April 22 March 18, 2018
 Funville Adventures is on a Web Tour! February 19, 2018
 Secret 3digit numbers January 28, 2018
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 Musings of a Mathematical Mom
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Author Archives: aofradkin
Isometric graph paper and 3D pictures
Translated from this post by Jane Kats. At our math festivals and during Mousematics lessons we actively use isometric graph paper, aka “triangular grid paper”. Sheets with a triangular grid can be downloaded on our site here in the free downloads … Continue reading
Fun with pentacubes
Today we started a unit on geometry with the second graders. The first activity had them explore how many different structures can be made out of 4 snap cubes. They very quickly came up with the five tetrominoes: After a … Continue reading
Posted in Uncategorized
Tagged 2nd grade, 3Dgeometry, geometry, Main Line Classical Academy, manipulatives, snap cubes
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Funville Adventures launched!
Funville Adventures, our mathinspired fantasy adventure with Allison Bishop, is officially published! It is available on amazon and directly from Natural Math, where you can read more about the book. Here are some early reviews of the book: “You too … Continue reading
Counting crocodile legs
Katie, at nine years old, rarely asks me to give her math problems. She always has a lot on her mind and gets plenty of problems from school and other mathrelated activities (interesting problems do sometimes come up spontaneously in … Continue reading
Posted in Uncategorized
Tagged #tmwyk, 4 years old, amusing conversation, arithmetic, word problems
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Counting beads
Translated from this post by Jane Kats. Recently, at our math lessons with 56 year olds, we were … threading beads. Actually, we were making very simple abacuses. We were putting 5 light beads and 5 dark beads on a … Continue reading
Posted in Uncategorized
Tagged 4 years old, 5 years old, 6 years old, counting, jane kats, making 10, manipulatives
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Playing Broken Telephone
What follows was translated from this post by Jane Kats. The game described was played by children ages 56, but I feel that a variation of it could be fun for older kids, or even adults. Ideas? When I was … Continue reading
Drawing heads, tails, knees, and toes – useful?
Drawing a useful picture or diagram is an important problemsolving skill. From teaching different groups of elementary school children, I have noticed that some students are very reluctant to draw anything whereas others will draw elaborate pictures with lots of … Continue reading
Posted in Uncategorized
Tagged 1st grade, 6 years old, addition, arithmetic, books, drawing, problem solving
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A mathinspired love story in verse
For post #100 on this blog I wrote a poem. This is post #200 and I decided to start a tradition. This is a poem written jointly with Allison Bishop. It is an epic love story. Math is involved. The … Continue reading
A figure with pointy things and a line, a line, and a line
Look at the title. Did you guess that this was a description of an acute triangle? This description was from a student in my third grade class. Let me assure you, this student knows how to recognize an acute triangle … Continue reading
Posted in Uncategorized
Tagged 7 years old, 8 years old, communicating mathematics, games, geometry, third grade, verbal descriptions, word games
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Protecting against magic
Yesterday, Zoe and I were playing a game of Bingo. In this version, there are cards with the pictures and names of the items (all related to the ocean) and you flip them over one by one to figure out … Continue reading