Strategies to discourage uptalk in Chinese language learners?
In class, I can see that as a problem. I agree the best approach is the teacher asking them to repeat themselves again and again, particularly while doing reading. I could really feel the pressure so I knew I had to know exactly which tone it was, and then be definitive in what I said. There was a lot of 再說一次.

However, once people are outside of class, I think it will be impossible to get around. In Taiwan, people just wouldn't understand me at all when I said a word like a question because I wasn't sure. And typically if I was definitive, the conversation would continue on normally with full (hopefully) understanding.