Teach180 Post from lindjonath

Trig Review in #precal
Shoutouts: @MrJohnRowe @k8nowak (I think)https://t.co/iKvSrpHFWd #teach180 #mtbos #iteachmath http://pic.twitter.com/rPY4iP22a7

— Jonathan Lind (@lindjonath) September 6, 2017