MPM1D1 - Day 71 Rearranging Formulas

We started today practicing solving equations with fractions as groups at the whiteboards. Here we the warm-up questions.

There weren't any problems with the first question. There were a couple of problems with the second one and more problems with the third. We spent some time working through the issues. Some groups wanted more questions to practice with so I had them make up their own and go from there.

Once everyone seemed comfortable solving these equations we moved on to rearranging formulas. I posted a few on the board and let them get to work. Here are the questions they started with.

The most challenging one here seemed to be part c. For groups that struggled I gave them an example where y, m and b were given and asked them to solve for x. They had no trouble doing so, so I asked them to replace the numbers with variables. That seemed to be enough to get them going.

Once groups were done I gave them some questions to practice.