UNIT 1: 

Comparing Integers: https://www.youtube.com/watch?v=OAoLCXpao6s

Integers in the Real World: https://www.youtube.com/watch?v=ZDUGNrzgMi4&t=121s

Compare and Order Integers: https://www.youtube.com/watch?v=OLKJsfWjN3Q

Absolute Value: https://www.youtube.com/watch?v=wrof6Dw63Es