Friday, Dec 12, 2008 - Block 4B

Since Thursday class was such a disaster, I did not repeat it for today's class. Instead, students took out their guided note sheets and copied down the rest of the notes from the overhead. I explained things as we went.

Is mass the same as weight? NO! Mass is the amount of matter. It is a measure of the amount of inertia. Weight is the pull of gravity. An anvil in outer space is weightless, but it still has mass and still has inertia. It still could pack a wallop even though you could balance it on a finger tip.

After I finished, I put out the overheads and gave students the opportunity to copy down anything they had missed while the other students took a short break. During the break I handed out the Newton's 2nd Law worksheet and the supplemental activities for the 2nd Law Worksheet. I asked students to work on them at the same time since the supplemental activities helped them answer the questions for the worksheet.

I also told the students they would have a test on Newton's Laws next Thursday.

At first a couple of students really disrupted the class so I had them gather up their things and do the worksheets by themselves in another classroom. The rest of the class worked really well after those two left.

I collected both sheets at the end of the class.