When my daughter started at her school I found out that the 3rd grade does this every year. Then I heard some not happy outcomes for what happened to the chicks. I spoke to one of the third grade teachers about it, gently and as a means of offering help not judgement. The situation is better now. The teachers start looking for homes NOW in Sept but they don't do the hatch until May, the chicks are better off in spring and it gives everyone a chance to think about what they were doing. SO if your child's teacher is asking now, one of the questions would be - when is the hatch??
Now, the chicks they use are all sex linked. ANyone who says they want chicks must say chicks - not a chick. And they must show the teacher that they have housing for them. (usually they ask the kid to bring in a photo of the new coop.) After the hatch any "left overs" we take with us. We are also up front that since alot of them are roos they will have a wonderful 12 week life and then humanely turned into meat. All parents taking chicks are given this web site! and my phone number. (I am no expert and don't try to be, but at least I am willing to make myself available which is sometimes better than nothing._
I approached it as a problem to be solved, not as a horror to be condemned which is how I felt the first time I heard about how it was being handled. I am sure you will do great talking to her and maybe you can help the teacher make it a great experience. Sometimes the teacher will ask me to come in and answer the kids questions about what they eat etc. Maybe you can offer to do that??