October 17: More Gravity HW review

This block was spent covering the gravity homework. There was still some confusion about calculator usage and many calculating errors. I mostly paced the room, helping students one-on-one while the teacher reviewed. After spending so much time on calculator usage, I’m of the opinion that some sort of primer should be made as a handout. Perhaps a one page handout on how to use a calculator, covering the main functions that will be needed. Similarly to the discussion on October 14, give the function, common ways its presented on different calculators, a few examples of how to enter it, and maybe a few self tests. Another handout could be made for basic math concepts that will be used frequently in the class, such as order of operations, commutativity, manipulating a formula, understanding a formula, conversions (multiplying by 1), rounding, and scientific notation. A third might focus on units, although this is something that is and should still be covered in class. A few reasons why these handouts are a good idea:

• these would give students a good reference sheet
• more class time can be dedicated to physics
• helps students learn to self teach
• sets a baseline for expectations. its clear for the students what they need to know
• even if the handout is not enough, it introduces the concepts. when they do come for help, they’ll be a little further along than they would be otherwise.

The best use of class time is to say the things that everybody needs to hear. Situations where there is a large spread in student abilitiy and/or understanding might be more effectively handled by self teaching (reading assignments and HW) and after school assistance. The students who get it can dedicate their time to other things (and don’t get bored). Those who don’t get it will unfortunately will be burdened with more work, but they will also be able to take the time they need without worrying about their classmates.