Numicon – combining geometry and arithmetic

Translated from this post by Jane Kats.

This year, we are actively using the Numicon tool in our classes.  We have two sets like this one – and it’s plenty for a group of 12. (Translator’s note – here is a slightly smaller set more readily available on amazon).

Sometimes I ask the children to bring me two pieces of different colors and count how many holes there are altogether.  

And recently, we drew another set of puzzles for Numicon. 

You have to find two different Numicon pieces to make each shape.  (Translator’s note – instructions on the sheet say “Put this shape together using two different pieces of Numicon”).

jane_numicon1

You need to pick the pieces, see if they fit and count the holes.

jane_numicon2

It’s interesting that when kids use the same two Numicon pieces for a different shape, they still have to recount the holes.

jane_numicon3

jane_numicon4

It’s a nice bonus that many of these problems have 2-3 solutions.

jane_numicon5

How do you play with Numicon?

Advertisements

About aofradkin

I enjoy thinking about presenting mathematical concepts to young children in exciting and engaging ways.
This entry was posted in Uncategorized and tagged , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s