tags: 4.G
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The HAT tessellation

Geometry Math and Art Current events
 An Einstein aperiodic tile has just been discovered.  Find out what that means and why it is significant.  Plus - play with the tiles.  Do you want to tile your shower floor wi...

Lighting the 2022 Olympic Torch

Algebra Geometry Math and Science Sports Holidays and Annual Events
On October 18th, 2021 the Olympic Torch was lit in Greece.  It was lit without the help of a flame or a match.  It was lit by concentrating the rays of our Sun. From Olympi...

What's interesting about this number?

Algebra Number Sense Data and probability
  Why did we put it on YummyMath today? What do you notice about this number? What do you wonder? Do you think that this happens often in a year?

Inauguration Date

Algebra Number Sense Geometry Data and probability
  The date of the Presidential Inauguration this year can be written in an interesting way. What do you notice?  What do you wonder?  Do you think that this happens often in a yea...

Largest s'more ever!

Number Sense Math and Food Holidays and Annual Events Ratio and Proportion
Thursday, August 10, 2023 is National S'more Day. Thanks to Maggie Hefferman, Newton, MA educator, for the idea of this post. To help you celebrate this strange new hol...

Point of view

Geometry Math and Art
If you have a set of cubes for your classroom, this would make a great group hands-on project. Its an old puzzle but the activity deserves a revisit. Below are two straight-on images of my ...
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