The blocks

Learn's missions use a small set of friendly blocks. Each is a Runeweave node underneath, with simpler names for the classroom.

Block	Inputs	Outputs	What it does
Button		pressed	On while the button on the left add-on is held down.
Light	on		Lights the light on the right add-on while on is on.
Flip-flop	toggle	memory	Remembers on or off. Each time toggle turns on, memory flips.
Blinker		beat	Switches on and off by itself. Set how many seconds each beat lasts.
Both	A, B	out	On when A and B are on.
Either	A, B	out	On when A or B is on.
Opposite	in	out	On when in is off, and off when it's on.
Wait	in	out	Passes in on after a number of seconds.

The seconds on Blinker and Wait can be 0.25, 0.5, 1, 2 or 3.

A first program

Wire Button → pressed to Light → on. Hold the button and the light is on; let go and it's off.

Put a Flip-flop in between (pressed → toggle, memory → on), and each press switches the light on or off and it stays that way.