The dream indicates that whatever this teacher gives you, you can count on it to be accurate. You trust his decision, input, teaching, grading. What you're afraid of is being wrong. Especially with a test that holds so much gravity to your life. So you're afraid of not only the test, you're afraid about the outcomes.
Let's take a look at the dream for a moment: Math teacher says" meteor will fall" Your reasoning & friends decide that it's ridiculous. You see proof and then you realize he is right.
Lesson to take from this before Monday. Trust all the information the teacher has provided will be more than adequate enough for you to reach your goal. Secondly, understand you become wrong when you question the information. This pose the biggest threat to you on this test. Nothing more. The best thing to do is trust the information, no second guessing.
This was a "Trust the information dream". It is well.
I hope this helps some.