The circle example is a nice one, however at the time of viewing it went from demonstration of divisible by 4 to divisible by 60, at which time it mentioned a clock. The presenter then continued to draw arrows from the right side of the circle and went counter-clockwise, which seems a bit silly when comparing it to a clock.
I think it would’ve been better if the circle example had the 0 starting at the top of the circle, and the numbers were added clockwise.