I want to send a picture to the calligraphy teacher. He is 7 1 year-old, and the content is "A teacher's heart is full of Dan after three thousand students". How to write the signature?

In this case, the signature should have two paragraphs.

The previous paragraph is written on the upper right of the banner in a low position. It can be written as follows: Teacher (my teacher), Mr. xxx's Qingjian (Ya genus, correct ...)

The next paragraph is written on the lower left of the bottom couplet. It can be written like this: (years old) is under the age of (disciple) xx. [The contents in brackets may not be written]