Henry..
It sounds like something that came from a regular elementary classroom book from an English speaking country.

However, you need to tell us where the lesson came from. Are you a Teacher Trainer or a Teacher who was given the lesson by a school?

THEN AGAIN
We have all seen teachers who loudly proclaim , "I used that sentence before. You can't use it. 'The house is green.' has been used by me. You can't plagiarize my work.

Since when do teachers have the ability to claim certain sentences or words as being their own.

Gary