I saw sections 3, 4, and HB today. (We had testing in 5 and 6.)
I had the students practice recording using the microphone. It is not as easy as you would think. The students don't like to project their voices. They try to rely on the mic. So I kept urging them to speak up. I told them I would do that twice and then stop when they record their piece over the next few days.
Here are the practice ones we did today if you are interested.
(Maybe your child could point out which one is his/hers.)
Section 3
Section 4
Section HB