 Here's how a teacher might use I-do, we-do, you-do in a science lesson about growing a plant from seed. For the I-do section, the teacher demonstrates and explains how to plant a seed in a cup. The teacher takes a small cup and fills it with soil, plants a seed in it, and then waters it. For we-do, the students follow the same process along with the teacher. Then they place all of their cups by a window. For the you-do, the teacher could say, now each of you can take a seed home and plant it yourself.