I have an idea about how to write the composition for grade three.

I have an idea to install a heating and cooling air conditioner in the classroom.

In summer, the class is very hot. The students have a fan on their heads, but the room is still very hot. Some students shouted: "What a fever! It's so hot! " The classroom suddenly became noisy, just like the vegetable market.

There is no fan on the teacher's head, and his forehead keeps sweating, but he still comforts us: "I know everyone is very hot, so just bear it for a while and calm down." "After listening to the teacher, the classroom suddenly became silent. We all quieted down and listened to the teacher.

Although it was very hot, the teacher never stopped lecturing. I felt the teacher's hard work and saw the teacher's strength, thinking, "If only there were air conditioning, then the teacher would not be so hard."

In winter, the cold wind bursts and the classroom is chilly. The students can't help rubbing their hands and stamping their feet. Some students also shouted: "It's so cold!" The teacher closed the window near the students, fearing that the cold wind outside would freeze Ma Tongxue.

There is only one flat window open-the window near the podium, which the teacher said is for air circulation. Isn't the teacher afraid of the cold? No, although the teacher's face turned red with cold during the lecture, he still smiled during the lecture. This makes us feel the fun of class and the warmth of the teacher.

I have an idea to install an air conditioner in the classroom to adjust the temperature, so that the classroom is spring all year round.