Pay attention to what she is trying to tell you.
Keep what you are telling her short and simple but not child-like.
Use one-step instructions when asking her to do what you want. This will decrease her frustration level and make each activity a success for her.
Don't tell her more than she needs to know at one time.
Be patient. Give her lots of time to answer your question.
If she loses the thought, ask the same question again.
Give her lots of time to finish what she is trying to say.
Don't argue with her. It is easier to agree with her and then do what you had planned anyway.
Don't try to reason with her. You will just get angry and she won't know why. Change what you're talking about to something she likes.
Don't correct or fuss at her for getting something wrong. Does it really matter? It may only make her feel bad.
Don't say "I just told you that." Just repeat the answer you have already given to her.
Don't ask her to "remember" things that happened in the past. Talk about what you remember happening and how she was a part of it.
Don't say "You can't." Say "Do as much as you can and I will help you."
Don't demand things from her. Always show her what you want her to do.
Her entire day depends on how you speak to her. Speak very calmly and know that your body language needs to reassure her.
