Tell her that keeping a turtle in a small cage doesn't stunt its growth, but keeping it unhealthy does. Keeping a fish in a small tank won't stunt its growth; it's that the water has a higher concentration of waste and other pollutants because the keeper is doing a poor job--it has nothing to do with tank size and everything to do with a lazy, misinformed, or cruel keeper.
If she doesn't pay attention to you, you need to start blatantly questioning her credibility as a biology teacher to her face, to the principal, and to the school board. Whether anyone will take you seriously, I can't say. Hopefully you can get some other students to join you and help out.
Other than that, there really is not much you can do. You can try to have her charged with cruelty to animals, and though it's a noble cause, I doubt it would come to much. It's hard enough even to have people who smash puppies on the ground convicted of animal cruelty and sent to prison for more than 30 days, where I live anyway, because people are going to get up in arms that "oh it was just a puppy" and "we let pedophiles roam the streets! Why are we worrying about someone who killed a puppy?" and on and on. So yeah it would be quite a fight and I encourage you to go as far as you can, but you need to be heavily prepared with research, respected contacts in the herpetology and animal rights fields, etc. Who knows...if you did a good enough job, you might help get people started on the slippery slope from treating reptiles as if they feel no pain and as if they are at best a novelty to be disposed of when it expires and at worst an inconvenience to be killed with the nearest shovel...to seeing them as real creatures who eat, breathe, drink water, and feel pain, as well as playing an important part in their ecosystems--animals that deserve to be treated with respect.
I'm still waiting for the day when it becomes illegal for pet stores and flea market vendors to give away "free turtles with purchase of habitat!"
Anyway, good luck, and if you want any more advice or information, PM me and I'll see how I can help.
If she doesn't pay attention to you, you need to start blatantly questioning her credibility as a biology teacher to her face, to the principal, and to the school board. Whether anyone will take you seriously, I can't say. Hopefully you can get some other students to join you and help out.
Other than that, there really is not much you can do. You can try to have her charged with cruelty to animals, and though it's a noble cause, I doubt it would come to much. It's hard enough even to have people who smash puppies on the ground convicted of animal cruelty and sent to prison for more than 30 days, where I live anyway, because people are going to get up in arms that "oh it was just a puppy" and "we let pedophiles roam the streets! Why are we worrying about someone who killed a puppy?" and on and on. So yeah it would be quite a fight and I encourage you to go as far as you can, but you need to be heavily prepared with research, respected contacts in the herpetology and animal rights fields, etc. Who knows...if you did a good enough job, you might help get people started on the slippery slope from treating reptiles as if they feel no pain and as if they are at best a novelty to be disposed of when it expires and at worst an inconvenience to be killed with the nearest shovel...to seeing them as real creatures who eat, breathe, drink water, and feel pain, as well as playing an important part in their ecosystems--animals that deserve to be treated with respect.
I'm still waiting for the day when it becomes illegal for pet stores and flea market vendors to give away "free turtles with purchase of habitat!"
Anyway, good luck, and if you want any more advice or information, PM me and I'll see how I can help.
