Tree for Springtime
Here in the Northeast, flowers are blooming and trees are leafing out.
We thought the creation of a tree that grows before your eyes might be akin to what is going on all around us.
What d...
Geometry
Genres
Grade
Shoprite's solar energy goals on the African continent
Shoprite is the largest supermarket chain in Africa. The company is presently engaged in increasing their use of solar power to harness the abundant natural resource of solar potentia...
Will our U.S. flag change yet again?
How many stripes are in our present flag? (The bottom right flag that has been in use since 1960; See the PowerPoint)
How many stars?
What do the numbers of stars and strip...
Inauguration Date
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...
December 21, 2020 - Great conjunction
Right now, just after sunset, in the southwest sky, you can check out the planets of Jupiter and Saturn as they get closer and closer to each other. They are millions of miles apart but they app...
Canstruction
Act One: Take a look at the pic. What questions come to mind?
Just before Thanksgiving there are competitions all over the world to celebrate cool design, tricky engineering, a...
Ravensburger huge puzzle
This puzzle is gorgeous and HUGE!
Ravensburger says that if you spent 2 hours every day putting this puzzle together it would take you a year to finish.
What do you wonder?
Students ...
Monster cake
Jodie Berman, a high school math teacher in Chicago, loves mathematics and loves to cook. We've created an activity based on her Monster Cake (composed ...
How much chocolate is left?
In this short activity, students reason and calculate what is left of these chocolate bars. The bars are the same size but are molded into different number of sections. Which one has...
Can you show that the Pythagorean Theorem works?
Use this activity to help your students work through the meaning of the Pythagorean theorem. Pythagorean theorem experiences are often skill and drill work with contrived right triangle problem...