To make a beautiful origami Christmas tree, you'll need some square pieces of colored paper. Fold the paper in half diagonally to make a triangle, then fold the sides in until they meet in the center. Unfold the paper, then fold the corners in to make a smaller triangle. Fold the triangle in half to make a diamond shape, then unfold. Fold the top edge down, then fold it up again, creating a point. Fold the bottom edge up to make another point. Now you have the basic shape of a tree! Add details with small decorations or drawings. Enjoy!