# Tag Archives: arithmetic

## Conservation of fingers and toes

Zoe likes to play with my hands. She will examine the fingers, moving them around and pulling on them. And I, being who I am, find myself thinking, “Fingers are a great math manipulative. I should seize the moment and … Continue reading

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## 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

## Great Mathematicians, Old and Young

Almost every week, I read or tell my second grade class a story about a famous mathematician.  Recently, we have been reading from the book Mathematicians Are People Too: Stories from the Lives of Great Mathematicians and the students have been … Continue reading

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## Kids are like marbles

In addition to teaching Kindergarten, 2nd grade, and partially 3rd-4th grades at the Main Line Classical Academy, I am also continuing to teach enrichment math at the Golden Key Russian School.  There, I have two groups of Kindergartners, one group … Continue reading

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## What is a number? – First week of Kindergarten Math

My first week of teaching has been a lot of fun!  This post is about some of the things we did with the Kindergartners. On the first day, after introductions and getting to know each other, I asked them what … Continue reading

## M&Ms: Munch and Math

It all started with a bag of peanut M&Ms. There were three of us and we would take the M&Ms out of the bag three at a time; Zoe would pick her favorite color out of the three, then Katie … Continue reading

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## Just how many prime numbers are there?

Over the past few months, my 4th and 5th graders had a number of opportunities to explore prime numbers and factoring – they drew factor trees, discovered divisibility rules, played Prime Climb, and more.  Last Sunday, I decided that they … Continue reading

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## Gruesome Math

Zoe has a recent fascination with blood – not the real kind (luckily), but the kind that appears in stories when someone gets hurt.  Here is an example of how an innocent math problem turned into a gruesome tale.  I was … Continue reading

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## 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

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## Cuneiform numerals

When was the last time you paused to appreciate the beauty and simplicity of our number system?  Compare it, for example, to the Roman numerals, that we all become intimately familiar with in elementary school.  Why is it better?  To … Continue reading

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