I think that it is important to sit down with your CT and have an open conversation about your concerns. She may be noticing them but is not giving adequate praise for when you make corrections. Your CT may not have the same feelings so I would talk with them before coming to the conclusion that she doesn't notice them at all.

I would speak to your CT about the corrections first. Directly after your observed lessons, you can ask her "did you notice that I took your suggestion about..." Perhaps she is not watching closely enough, but you directing her notice may help. If this does not help, I would talk to your supervisor because this could affect you in your internship.

I would first have a conversation about these concerns directly with your CT, I would try to have these conversations via email so that it is in writing. I would keep you supervisor in the loop so that he is aware of the situation.

I think you should have a conversation with your CT and supervisor about this. Explain to your CT that you have noted her guidance and have worked to make the suggested changes. Ask them what they are wanting from you to be successful. Ask your supervisor what they think of the situation. Maybe they see your corrections through observations and think you are doing a great job. Maybe your CT is a perfectionist and wants things done the exact way she would do them. In that case, they are setting you up to fail in their classroom. You are your own person and will teach in the way that is your personality. If there are major issues in your teaching that are preventing students from meeting objectives, then changes may need to occur, but if you are making the changes that your CT suggests and they are still not pleased, than you have to take that as it is and continue doing what your doing.

Once you are done teaching, point out the ways that you are following her corrections and ask if those were helpful or not. It is possible that she has so many things on her plate that she isn't noticing all the things that you are doing. I would suggest focusing on a few of her corrections in your next lesson and tell her beforehand to look out for them in your teaching. You are learning so she also needs to understand that you won't get it right away.

You should see if you can work it out with your CT first before going to your supervisor. Set up a meeting with your CT after each lesson to go over your performance. You could start the conversation by telling her what correction you have been working on and how you felt you did with it during the lesson. Then you can ask for her opinion and if she has any more tips for you. Ask her to be extremely descriptive!

I would definitely sit down with your CT and have an open and honest conversation. Express how you take notes on her corrections and feel like you correct them and ask her if she feels otherwise. I also think you should tell your supervisor what is going on and be honest with them as well.

Your CT and you should be going over your Professional Development Plan every four weeks, as well as your Professional Behavior Plan. Muster up the courage and bring it up! Your University Supervisor will notice the differences when they observe you as well.

You should talk with your CT about the changes you have made and see if they satisfy the suggestions that they made. It is important to get extra feedback from your CT about the changes you are making to see if you are progressing. If you continue to have problems, talk with your supervisor for advice.