Pick a week to start (or pick up where you left off). Each week has Mon-Fri lessons and a celebration recap.
// A system of parts with jobs
// The forces that start, stop and turn a bike
// The rubbing force that helps a bike go and stop
// What holds a tire up
// Counting teeth to predict turns
// Measure, find the pattern, predict
// Friction that stops the wheel
// The right size bike, the right fit helmet
// Light, reflectors and bright colors
// Leak detectives at work
// A, B, C before every ride
// Define, compare, test, improve