# Cedars Math:Chapter 2

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## Contents

- 1 Chapter Two: Fractions
- 1.1 Lesson 2.2, Mixed Numbers. Monday, September 21.
- 1.2 Lesson 2.3, Factors and Prime Numbers. Wednesday, September 23.
- 1.3 Lesson 2.4, Putting a Fraction into Lowest Terms . Friday, September 25.
- 1.4 Lesson 2.4b, Plotting Functions, Divisibility by 2, 3, 5, 7, 10 Monday, September 27.
- 1.5 Lesson 2.5, Multiplying Fractions. Wednesday, September 29.
- 1.6 Lesson 2.7, Dividing Fractions. Friday, October 1.
- 1.7 Lesson 2.8a, More Multiplication. Monday, October 4.
- 1.8 Lesson 2.8b, Wednesday, October 6. Emails, Prime Numbers

## Chapter Two: Fractions

### Lesson 2.2, Mixed Numbers. Monday, September 21.

- Still pictures that Olivia took: whole class and Olivet, and Noah and Briley.

### Lesson 2.3, Factors and Prime Numbers. Wednesday, September 23.

- The "All Odd Numbers Are Prime" joke and joke script

### Lesson 2.4, Putting a Fraction into Lowest Terms . Friday, September 25.

### Lesson 2.4b, Plotting Functions, Divisibility by 2, 3, 5, 7, 10 Monday, September 27.

- HW 2.4b supplement: Plotting Functions with Python and zoom office hour sessions one and two on problems with the homework.

- Khan Academy on divisibility by three, and a better, written, exposition.

- I've written up a handout of some Python code for testing divisibility by 2,3,5, and 7. Its purpose is to illustrate how one has to write up instructions for a computer carefully and clearly.

### Lesson 2.5, Multiplying Fractions. Wednesday, September 29.

### Lesson 2.7, Dividing Fractions. Friday, October 1.

### Lesson 2.8a, More Multiplication. Monday, October 4.

- The "All Odd Numbers Are Prime" joke and joke script. The video of part 1 (explanation of primes) and part 2 (explanation of people) and part 3 (the joke itself) and part 4 (Polya Conjecture)of the odd number joke. The Python code by Professor Connell to test the Polya Conjecture.

### Lesson 2.8b, Wednesday, October 6. Emails, Prime Numbers

- Prime_Proof_handout.pdf Handout on Euclid's proof, ] and "Euclid's Proof of the Infinitude of Primes" and five-minute video of Mr. Rasmusen going through the proof.

- Handout on writing emails

- Gordon Klein video from Fox's Tucker Carlson Show.

**Friday, October 8. No class. Trip to Indianapolis.**

** Monday, Wed., Friday, Fall Break.**