Teach180 Post from BeckyHall75

I've done this @Desmos activity https://t.co/WcwAA6Wfw7 several times and I still think it's great. Gr10 try to model sine curves #teach180 http://pic.twitter.com/doV5vJBwqi

— Becky Hall (@BeckyHall75) May 8, 2017