Too tall

Teaching children isn't difficult.

One day my children were very noisy.

Then suddenly I heard myself asking them:

How would little insects deal with noisy insect children?

We went outside to try and find the answer and within no time all children were in the grass on their bellies, trying to understand insects.

I asked one of the children why they were on the ground and he said:

"Because we can't answer your question when we're standing. Then we are too tall."