Here are the steps to making an origami Christmas tree:
1. Start with a square piece of paper and fold it in half diagonally, creating a triangle.
2. Unfold the paper and fold it in half again, this time horizontally, creating a smaller square.
3. Unfold the paper again and fold one corner to the center, creating a triangle.
4. Fold the opposite corner to the center, creating a smaller triangle.
5. Open the paper and flip it over, then fold the top edge of the paper down to the center.