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Recent Posts
 Witnessing the woes of math homework January 19, 2018
 The mathematical boundary between a joke and a lie January 15, 2018
 Highlights of 2017 December 31, 2017
 Discovering the area of a trapezoid December 29, 2017
 “Math you can play” – books with games December 17, 2017
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 Musings of a Mathematical Mom
 ШКОЛЬНЫЙ БЛОГ: Русская Школа "Золотой Ключик" в Филадельфии SCHOOL BLOG Golden Key Russian School in Philadelphia
Tag Archives: Main Line Classical Academy
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
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Time, symmetry, and unexpected turns
This is a story of how a kindergarten lesson on telling time turned into a lesson on symmetry. It all started with a fun, colorful clock, with numbers 1 through 12 made out of shapes (some related to the number, … Continue reading
Posted in Uncategorized
Tagged 5 years old, Kindergarten, Main Line Classical Academy, rotational symmetry, symmetry, time
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Four colors or more?
When you find your students working during break time on a problem that was the topic of a lesson three weeks prior, you know that something has gone right and your heart is filled with joy and excitement. What they … Continue reading
Posted in Uncategorized
Tagged 2nd grade, 3rd grade, 4 color theorem, coloring, drawing, graph theory, Main Line Classical Academy, proof
4 Comments
Dots in a Square from Math Without Words
Recently, my third grade class and I have fallen in love with Math Without Words by James Tanton. This is a delightful collection of math puzzles, ranging in difficulty from fairly easy to quite hard, but all mathematically beautiful. Occasionally, … Continue reading
Lots of fun with Tiny Polka Dot
For a week in our kindergarten class we have been playing with Tiny Polka Dot! I had been excited about these cards arriving for a while, and I was not disappointed. They are colorful, sturdy and creative, and my students … Continue reading
Functions in Kindergarten – A favorite
A few weeks ago I did a series of lessons with the kindergartners about one of my favorite topics to do with this age group: functions! I recall being quite surprised when I introduced the concept to my daughter when … Continue reading
Posted in Uncategorized
Tagged 5 years old, function machine, functions, Kindergarten, Main Line Classical Academy
2 Comments
Our Second Fun Math Festival
We had another wonderful math festival, hosted jointly by Golden Key Russian School and Main Line Classical Academy. Here is an account of it, written by Yulia Shpilman. We did it, we did it, we did it again! Last Sunday, … Continue reading