These are very helpful tips Miranda!
I would love to add to them with the following two offerings for students which show how how to use your mouth and tongue to produce sounds.
1. First is this Youtube video I have put together on how to make different consonant sounds in English. See below.
2. Second is the video I have put together showing how to make long and short vowel sounds in English. To see this video, go to https://www.advancedenglishlearning.com/free-English-pronunciation-lessons
<iframe width="854" height="480" src="https://www.youtube.com/embed/yCaoI2oxEfo" frameborder="0" allowfullscreen></iframe>
I hope you find these useful!
Advanced English Learning