1.

Tools: star paper, adhesive tape and scissors.

1. Turn the corner behind the star paper to the front.

2. Turn the corner of the star paper around, so that the star paper is wound around the sharpest corner.

3. Fold the rest of the star paper backwards, making sure that the sharpest corner has a flat place, and the length of the slope of the triangle is about 1.7cm.

4. Continue to repeat the third step, and then continue to fold according to the third step.

5. The effect after folding is shown in the following figure.

6. Cut off the superfluous parts of the star paper, leaving only triangles.

7. Roll up the paper bit by bit from the beginning, paying attention to the fact that the top is thick and the bottom is thin.

8. Roll all the remaining star paper and fix it with adhesive tape. Press down the center of the rose flower with your fingers and adjust the rose petals.

9. The finished product is shown in the figure below.

2.

Step 1: Prepare a square piece of paper and a toothpick, as shown in the figure.

Step 2: Fold the square in half once along the diagonal, then once along the center line of the triangle, then once along the center line of the triangle, and finally unfold it to get the crease, as shown in the figure.

Step 3: Fold inward along the crease on the opposite side of the square to get a double triangle, as shown in the figure.

Step 4: Fold the four corners of the double triangle in half along the center line, as shown in the figure.

Step 5: Fold the folded triangle in half again along the center line. The four triangles have the same operation steps, as shown in the figure.

step 6: unfold the folded triangle, return to the position of the double triangle, and fold one of the triangles inward along the crease to form a small square. The other three angles are operated in the same way, as shown in the figure.

Step 7: Fold the lower triangle upwards, as shown.

Step 8: Find the inward concave positions of four small squares, spread them with your fingers, and spread the inward concave corner on the left out to flatten it. The operation steps on the right side are the same, as shown in the figure.

Step 9: Turn the whole paper to the back, open the vertical triangle into four triangles along the gap, and press the bottom of the triangle counterclockwise, as shown in the figure.

Step 1: Hold the rose slightly in the palm of your hand, and at the same time, hold the apex with your hand and rotate it counterclockwise. You can rotate it several times more to make the heart of the rose more compact, as shown in the figure.

Step 11: Find the petals of the rose, roll them with a toothpick, and then adjust them, and a beautiful origami rose will be made, as shown in the figure.