Equation Solving

Today in grade 10 we started off by solving equations at the walls. We had enough space and markers for each student to write and practice solving. We solved equations with x on both sides, and worked our way up to solving equations with distributive property as well.

Our next challenge, since we were ready to try something new, was a word problem.

We noticed that there were 3 bananas in both situations. The change in price must be related to the change in number of apples. 2 apples is 1.50, so each apple is 0.75. We can use that information to calculate the price of a banana now.

For this question we didn’t have the same number of calculators or books, but we notice that we could double one equation to make the number of books or calculators be the same. We solved this problem, then went on to solve this 3 act task

This required us to multiply BOTH equations to get a common coefficient, and then we could solve from there. Overall a very productive class, too bad only half of the students were present. We’ll do more of the same tomorrow to catch everyone back up.