Tools needed: colored cardboard, glue, scissors.

1. Prepare seven pieces of small colored paper with different colors.

2. Fold one of them in half and draw the cross section of half a hot air balloon on it.

3. Cut along the outline with scissors, and cut out seven at a time.

Stick these seven pieces of paper together in turn.

5. Stick it on the upper left corner of yellow rectangular cardboard.

6. Draw the shape of a balloon basket on the red cardboard and write the words in it.

7. Cut it out, stick it on cardboard, and connect the hot air balloon with the basket with a black pen.

8. Finally, write "Happy Teacher's Day" on the cardboard, and the Teacher's Day greeting card will be ready.

Second,

Material preparation: colored paper scissors.

Operation preparation:

1, take square paper or origami. Fold horizontally and vertically in the middle of the paper.

2. Then rotate the paper and fold it diagonally in the middle. Horizontal and vertical.

3. Hold the left and right sides of the paper, and then gently push it to the middle, and the paper will automatically fold according to the previous folding method.

4. Fold the upper left corner to the lowest point. Similarly, fold the upper right corner to the lowest point. Now turn one piece over and do the same on this side.

5. Fold the right side on the left side and perform the same method on the other side. Now, move the left flip to the middle and fold it along the vertical crease in the middle.

6. Check the hole at the bottom of the tulip, and blow some air into the hole to make the flower expand and restore its shape. Now unfold the tulip petals to finish it.