Classroom board

For the lecture theatre. Draw with a pen or a finger: a loop is a state, a stroke from one state to another is an arc, a loop inside a state makes it accepting, a stroke into a state from its left makes it the start. Pick each arc’s symbols from the chips. When the machine is drawn, press Simulate. Press the full-screen button in the board’s corner to give it the whole display. The drawing is kept in this browser, so a reload does not lose it.