1. Guide the children to draw according to the meaning of the question. Painting is a bridge from abstract thinking to image thinking. Children can use simple and easy-to-draw graphics to represent students in line.

2. Let the children think independently, try to draw pictures and determine the solution.

3, let the children talk as a little teacher, say it out and clear your mind.

For example:

1, students line up, Xiaohua ranks sixth in the front and eighth in the back. How many students are there in this line?

I have been counting florets from beginning to end, and the florets are counted twice, that is, most of them are counted once, so 1 will be reduced.

What+what-1.

2. Students line up. Xiaohong has 6 people in front and 8 people in the back. How many people are there in this team?

The six people in front of Xiaohong do not include Xiaohong, and the eight people behind Xiaohong do not include Xiaohong, so add 1.

Ji+Ji+1.