If a 2D shape can be folded in half, with either side of the fold being a mirror image of the other, then it has a line of symmetry. A line of symmetry is an imaginary line, through the centre point, ...
Peg uses a magic ukulele to find the line of symmetry on shapes. Peg uses a magic ukulele to find the line of symmetry on shapes that form steps. The steps should lead her to the Kingdom of Day, where ...