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 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
 ШКОЛЬНЫЙ БЛОГ: Русская Школа "Золотой Ключик" в Филадельфии SCHOOL BLOG Golden Key Russian School in Philadelphia
Tag Archives: sets
Family Regrouping
Two sisters, two parents, two cousins, and four grandparents, all met up at the park (true story). During the car ride home, one of the sisters (lets call her Katie), exclaimed, “There were ten of us at the park.” The … Continue reading
Posted in Uncategorized
Tagged #tmwyk, 6 years old, arithmetic, counting, games, sets, word math games
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A bit of Set Theory
Katie and I joined my sister’s Golden Key Russian School – Katie attends and I help out my sister with the math classes. We hope to write semidetailed descriptions of the lessons on the school’s blog, but here I will … Continue reading
Onetoone correspondence – Not always obvious to kids!
There are some very hard problems in combinatorics that involve showing that there is a bijection (onetoone correspondence) between two set of objects, thus showing that the two sets have the same number of elements. On the other hand, we … Continue reading