I don't know how old you are, Kevin, but I am close to a million, so Here is my response. The humourous part about "pigs may fly" is sadly the fact that the teacher is so bad nobody learns anything. I have many times heard a teacher say, "More than half the kids in my class failed the test. These kids don't even try to learn." By announcing this to his peers, this person has also asked, "Is anyone else as rotten a teacher as me?"(of course he/she doesn't know that has happened.)
In preparing lesson plans one should never set oneself up for failure. Compare:
1. Lesson: How to find the percent of a number.
2. Lesson: By the end of the lesson students will be able to find a percent of a number (WRONG)
After stating what the lesson topic is, then plan:
The various levels of success are discovered in the testing. Usually like this...(I simplified it)
Grade A (80-100) = thorough understanding
Grade B (70-79) = very good understanding
Grade C (60-69) = satisfactory understanding
and so on...
The best teachers realize that there are TWO sides interacting in the classroom... Teacher and Learners.
If you are able to use this information right now, then look up and see the pigs.