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 A mathinspired love story in verse October 21, 2017
 A figure with pointy things and a line, a line, and a line October 13, 2017
 Protecting against magic September 16, 2017
 Skip counting or word skipping? June 25, 2017
 Numicon – combining geometry and arithmetic June 22, 2017
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Tag Archives: Main Line Classical Academy
A number talk that turned into an investigation
It all started out with 12+12+12 a problem that was not particularly difficult for any of my 1st/2nd grade students. The students took turns suggesting strategies for doing this computation and I recorded them on the board (this was an … Continue reading
Posted in Uncategorized
Tagged 1st grade, 2nd grade, arithmetic, exploration, Main Line Classical Academy, number talk
7 Comments
Playing with symmetry in kindergarten
In our kindergarten classroom, there is a big mirror that is usually covered by a giant map. And for good reason! As soon as the students find themselves anywhere near the mirror, it attracts them like a magnet. They make … Continue reading
Posted in Uncategorized
Tagged kids as manipulatives, Kindergarten, Main Line Classical Academy, mathematical art, symmetry
1 Comment
3digit numbers are tricky! Part II
This is a followup post to this one, about introducing 3digit numbers to kindergartners. I start this lesson by asking the students to come up to the board one by one and write down consecutive numbers starting with 100. There … Continue reading
Posted in Uncategorized
Tagged 3digit numbers, counting, Kindergarten, Main Line Classical Academy, place value
2 Comments
3digit numbers are tricky!
For the past several weeks, our kindergartners have been playing with 2digit numbers: they made numbers out of base10 blocks, wrote them on the board, translated between the two representations, counted by 10’s from different starting points, and more. We … Continue reading
Posted in Uncategorized
Tagged 3digit numbers, base 10 blocks, Kindergarten, Main Line Classical Academy, making numbers
13 Comments
Fibonacci Trees
For two weeks in a row, in our joint 1st5th grade math classes, a certain famous sequence made its appearance. The activities were seemingly very different: in the first one we were climbing stairs one or two steps at a … Continue reading
Posted in Uncategorized
Tagged 2nd grade, 3rd grade, fibonacci sequence, Main Line Classical Academy, mathematical art, patterns, sequences
1 Comment