Fold the square paper in half on both sides, fold the two sides toward the center line, stretch and press the two sides, fold the corner upwards after folding back, and unfold the hat.

The second one: square paper folding handmade flowers.

Prepare a square piece of colored paper to be folded diagonally, with four corners folded towards the center, continue to fold four corners towards the center, then fold four corners towards the center, unfold the nest from below, repeat the steps to deal with all four corners, fold the lower corners upwards, tidy them up, and stick them to the center with a glue stick.

The third one: a square paper folding windmill.

Fold the edge of the square paper into a cross crease, fold it inward toward the center along the crease, fold it inward on both sides, spread it out on both sides, and then fold it over.