Veritasium is a Youtube channel by Derek Muller. His videos would be excellent conversation starters to commence a math or science class. Particularly his one entitled, “Can You Solve This” to teach scientific theories or ways to solve a problem.Subscribe to his video channel. There are 40 videos to watch, from “Can Silence Drive You Crazy”, to “The World’s Roundest Object“.
One of my favourite ones is “This Will Revolutionize Education”. Check it out!