learn_initialize = function()
	Workbook =  edit.initialize_state(
		50,  -- top
		20 + 50, App.screen.width-50,
		love.graphics.getFont(), Font_height, Line_height)
	Text.redraw_all(Workbook)
	Answer_idx = love.math.random(#Words)
	if Answer_idx then
		play(Answer_idx)
	end
end