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 with these? Could a tile setter pull this off?
The HAT tessellation
Tag: 7.G
Earth Day actions for our planet
We have 16 activities that you could use for Earth Day! Saturday, April 22nd is Earth Day. Help your students become activists for our planet? We have 16 activities that support recycling, conserving resources, awareness of climate change and protecting our planet.…
Pi Day 2023 – 3/14
Two 12s or one 18?
Which should we order and why? Two 12-inch pizzas or one 18-inch pizza? Which will give you more pizza? More crust? Which is the better deal?
Square or Round – which pizza should I buy?
Warm up for π day with this updated activity!
If that slice from Sbarro is from an 18-inch pizza cut into eight pieces, which deal is better when comparing area of pizza and cost? How does the area of a square pizza compare to the area of a circular pizza?
MLK and efforts towards racial justice
Timelines for the life and work of Martin Luther King Jr. – Students create one of two timelines about Martin Luther King Jr’s life or the efforts in America to create a more fair racial balance in the U.S. …
Before the holidays (16 activities)
We have tons (well, 16) of activities to bring to your class in this last week before the holiday break. Movies, science, art, cooking, economics, weather and the logic of calendars. Enjoy!
Winter Solstice 2022
How is the amount of darkness now related to your location on Earth? Understanding the Winter Solstice. 7.G.3, HSG.C, HSG.GMD.4, HSG.MG.1
Do I have enough wrapping paper?
In this problem based activity students first guess and then try to calculate whether they will have enough paper to wrap this present without taping pieces of wrapping paper together. I have to wrap this box. ⇒ ⇐ …
Buy, buy, buy and ship (8 ideas)
Here comes Black Friday, Small business Saturday, Cyber Monday and Giving Tuesday. It’s a crazy time of year. Use all of that shopping to educate your students about good deals and how shoppers can be fooled. Is this really 70%…
World Cup 2022 – Qatar (2 activities)
The World Cup of Soccer begins November 20, 2022. We have two different activities involving the logic of setting up a fair draw and the number of matches that each team may have to play.
Total lunar eclipse
On the morning of November 8, 2022, many of us will be able to see the last full lunar eclipse until March 2025. Luckily, many of us will be able to see the eclipse pretty close to when we would…
The size of chocolates
In time for Halloween, students assume that all of our pieces of chocolate are about the same thickness and proceed to approximate their volumes by comparing only their surface areas. Encourage them to create overlapping grids and count the fully and partially-covered cells or use the mean radius method.
Indigenous Peoples or Columbus Day
Sts learn a little history, question what they have learned earlier, and calculate how far off Columbus was from East India and his understanding of the actual circumference of the Earth.
The James Webb space telescope and the Hubble
There have been outstanding images coming to NASA from the James Webb Telescope. Take some time to compare the Webb to the Hubble telescope that has been sending images to Earth since 1990. Look at what is different and what…