Preparation materials: Tools needed for making greeting cards, including colored cardboard, scissors, double-sided tape, etc.

1. First, fold the square cardboard in half, then fold it in half, then fold it in half, and then you will get a triangle.

2. Then draw the shape of petals on this table and cut them carefully with scissors.

The flower just cut has seven petals, so two of them should be glued together.

Next, you need to make seven petals of different colors and stick them together.

5. Stick the flower cluster on the card, so that the three-dimensional greeting card is finished.