# Tag Archives: 8 years old

## A figure with pointy things and a line, a line, and a line

Look at the title.  Did you guess that this was a description of an acute triangle? This description was from a student in my third grade class.  Let me assure you, this student knows how to recognize an acute triangle … Continue reading

## Discussing the meaning of “almost” with an 8 year old

I had previously mentioned that my children are very picky and slow eaters.  This creates much frustration for me, but at the same time has been on multiple occasions inspiration for interesting math conversations. Yesterday, Katie was eating a cutlet … Continue reading

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## 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

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## 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

## Avoid Hard Work! – A book for problem-solvers of all levels (toddler to mathematician)

It is the beginning of winter break and the family is off to a vacation.  The car ride ahead is many hours.  Ten minutes into the drive, Katie (8 years old) realizes that she forgot her book.  In desperation, she … Continue reading

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