Three bags of colored balloons, one pink, one purple and one yellow. Two rolls of scotch tape. A box of chalk. A few rolls of ribbon. Two rolls of gauze for float arrangement. A roll of rope. Two pumps. Pump up the balloon first. Then braid the balloons like braids with a rope in the middle. Make a big balloon arch. Fix the balloon arch at the door of the classroom, one in front of the classroom and the other in the back. You can choose any color you want. Draw flowers and hearts on the blackboard with chalk, and write the words "Celebrate June 1st". 4. Cut the gauze into sections according to the length (about one meter), then fold it into a bow shape and stick it on the blackboard and wall. Make the biggest bow in the middle of the blackboard and stick it on. 5 tie the ribbons together and tie them with the unused balloons of various colors. The balloon is on it, and the ribbon hangs from the bottom of the balloon. Tear the ribbon into small strips and roll it with a pen, and the ribbon will automatically curl into a beautiful shape. Leave a rope at the knot in the center of the balloon with ribbons, and one end of the rope is attached to the ceiling, so that the balloon and ribbons will hang down from the top of the head. All materials can be used up, and unused balloons can be attached to the walls and glass of the classroom in pairs. Small bows can also be broken and stuck to it. In this way, the whole classroom is filled with an atmosphere that makes children relaxed and happy.