Paper folding: one simple fold

Let's practise one simple paper fold.

Place a rectangular sheet of paper flat, with the short edges at the top and bottom.

Bring the bottom edge up to meet the top edge.

Line up the corners, then press along the folded edge.

Your paper is now folded in half. Pause the video and try it yourself.

Visual description: A blue rectangular sheet lies upright. Its bottom half lifts upward until the bottom edge meets the top edge. The two corners align. A yellow marker moves along the horizontal folded edge. The finished sheet has half its original height.
