Day	Topics	Read BEFORE class	HW
Monday	Introducing you me and cryptography
Tuesday	Functions	1.2	1.2 #1,3,4,5
Wednesday	Modular arithmetic	1.3 and 2.1	2.1 #3,4,6,7,8
Thursday	Shift ciphers		2.1 # 13,15
Friday	Affine ciphers	2.2, Chapter 1 of The Code Book	2.2 #1,2,3,4,5,12,13