My elder daughter is six years old, she is much more interested than her younger sister regarding coin collecting. She always sits beside me when i am enjoying my hobby asking many questions and even while i am posting on KOTCT

I have been trying to educate her as far as she can understand about coins and how to preserve them. I printed a world map "with countries labled" and gave her some world coins to arrange in her album just to help her know where did these coins come from.
Everything was fine until yesterday, when she came to me after school informing me what was the homework her English teacher asked her to do through the weekend.
They were given a sheet of paper with the opposites (smooth, rough, soft and hard..etc) and the children are asked to stick wit glue something to resemble the meaning infront of each word in an empty square.
The teacher said that for the word;Smooth.......stick a piece of aluminum foil "OK"
Rough........stick a piece of sandpaper "OK"
Soft.......stick a piece of cotton "OK"
Hard....... out of all the hard things in the world the teacher asked the children to stick a coin "well, thats not OK with me"

Its great when the school you send your children to learn at destroys what your children has already learned

My daughter came to me and asked what she should do?
I told her that she has to do her homework exactly as her teacher asked her to do, but she has to tell her teacher that she collects coins and this way the coin will be ruined.
Is this the right thing to do, or am i exagerating?