2023-11-20 09:44:37
Impress your parents at dinner
Impress your parents at dinner
This activity is the first in our series on mental math tricks. Let your students develop their own individual way of mentally multiplying by 0.5, 5, 50, 500, and so on. We have a little practice and a requirement for students to make sense of and verbalize or draw a picture of their conclusions as to why this works.
Comments (0)
Display 1 - 10 Of total 0
How much does America spend for Mother’s Day?
Updated in April 2026 with new data; see the answe...
2026
As the new year approaches (where did the ti...
Opening Weekend - Avengers: Endgame
Can you tell from its opening we...
How many delegates does each state get to send to the Democratic Convention?
Texas gets to send a lot more ...
Sadly, Jorge passed away yesterday.
He was a great dog! We...
Lots of Pieces
🧩In this u...
Star Wars ... the story continues
The Rise of Skywalker will open on December...
Tiny vacuum with a huge reach
From the vacuum description and advertisement in...
Civil rights marches, how do you count a crowd?
On October 16, 1995,&n...
The HAT tessellation
An Einstein aperiodic tile has just b...