Use the video links below for review or pratice.
https://www.youtube.com/watch?v=AJx06UbpQxU
https://www.youtube.com/watch?v=-B-i-g6cjic
https://www.youtube.com/watch?v=c4ALIwoXXe0
https://www.youtube.com/watch?v=xbvzB_8Wji8
HW: Book 4.9 do page 262 - 264 9, 10, 12, 16 & 62 - 68 all