MathO 2.0: March 27, 2020

We are now totally on line using zoom.

Here's what we covered today:

1. Warm up involving Alice and Bob and Bulls and Cows

If Alice guesses 3 4 7, and Bob responds with 1 bull and 2 cows, what are the possible different correct responses?

Answer:

3 7 4
7 4 3
4 3 7

2. St Endle's Inn

3. Circular Addition

4. Introduction to Scratch Programming

Math O 2.0 : March 22, 2020

Warmup problem: 

Grandma Sue has a large pan that she uses to make grilled cheese sandwiches.  She grills each sandwich 30 seconds on each side, and her pan can hold two sandwiches at a time.  How quickly can she make 3 sandwiches?

Wizards and Elves:

St Endle's Inn is a restaurant that caters to Wizards and Elves.  

St Endle decides that there must be a total of 9 Wizards and Elves in the Inn at one time.  Plot some values that work.


St Endle later decides that there must be 6 more Wizards than Elves in the Inn at any time.  Plot some values that work.

St Endle (after a particularly long night at the draught barrel) decides that twice the number of Wizards in the Inn should be 6 more than the number of Elves.  Plot some values that work.

Addition on Circles:

A number line is a great way for us to visualize adding numbers together.  What if the number line was rather a number circle?  We can create different circles with different numbers on them.  

Here is an 8-circle

2 + 3 = 5 on the 8-circle
5 + 3 = 0 on the 8-circle
6 + 7 = 5 on the 8-circle

Here is a 10-circle

4 + 5 = 9 on the 10-circle
6 + 7 = 3 on the 10-circle
8 + 9 = 7 on the 10-circle

(some of us figured out that for any number, the ones-place is its value on the 10-circle)

What is 423 + 295 on the 10 circle?