https://www.youtube.com/watch?v=f4mpuH20QyU&t=10s
Me and my 4.5 year old son ride the trail Roller Coaster in Squamish. I used the Kids Ride Shotgun towrope to tow him up to the top. The objective today was for him to get both wheels off the ground during a jump. As much as I want to teach my son, very often it is him teaching me how to progress as a rider as kids haven't made the mistakes we as adults make. I am riding a Devinci Troy and he is riding a Devinci Ewoc 20" bike. Enjoy.
