# Tag Archives: multiplication

## Games with the multiplication table

The following was translated from this post by Jane Kats.  Translation and translator’s notes are by Yulia Shpilman. (Translator’s note: I taught a lesson inspired by this post to my math circle for 1st and 2nd graders on Sunday and … Continue reading

## Double perfect squares

We have recently done a unit on perfect squares in school. The following conversation with Katie (8yo) happened completely spontaneously on a peaceful, evening ride home. K: 10,000 is a double perfect square. Me: What do you mean? K: Well, … Continue reading

Posted in Uncategorized | | 1 Comment

## 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

## Exploring Rectangles

Friday is a special day in our math classes at the Main Line Classical Academy.  We read and discuss mathematical stories and we do exploration projects.  Here is the project that we did with the 2nd-4th grades last Friday. It … Continue reading

Posted in Uncategorized | | 5 Comments

## Napier’s Bones

Recently, my husband was reading on Wikipedia about John Napier.  He became very intrigued with Napier’s bones, and decided to see whether we can acquire some.  I was very excited by the prospect as I have been lamenting about not … Continue reading

Posted in Uncategorized | | 1 Comment

## Fun With Multiplication?

For the past few weeks in class, we have been exploring multiplication.  A few months ago, we had learned about and practiced skip counting, so this time around we started by discussing why this might not always be practical or … Continue reading

Posted in Uncategorized | | 1 Comment

## Chips for All Seasons

Yesterday’s lesson with Katie and Varya consisted of exploring various ways of using colorful game chips for doing fun math.  The first activity involved dividing the chips between the doll Nina and the bear Stanford according to specified rules (I … Continue reading