Pick a week to start (or pick up where you left off). Each week has Mon-Fri lessons and a celebration recap.
// What a machine is, and the wheels all around you
// Rows of hooks and a slider that is a wedge
// A key's shape lifts the pins just right
// A twist that stops the water
// A tank, a flap, a float and gravity
// A loop, a gap and a glow
// A pull you can feel but not see
// A machine that moves heat out
// A switch that feels the room
// A spring pushes back
// Fuel or a battery, wheels, brakes and belts
// A car, a counterweight and your big explanation