Solving Linear Equations Number Talk by Ms. Donato

3(x+2)-8x=3x+9-2x

gdonato3 — 2024-07-13 17:31:54 UTC

Solve the following equation for x in which ever way you choose is best. Ensure you check your answer is correct.

Strategy Share

gdonato3 — 2024-07-13 17:33:04 UTC

Now I see every student is finished, I will randomly call 3 numbers to have students explain how they they solved this problem. You will take me through step by step what you did to solve.

Student 2 Shares

gdonato3 — 2024-07-13 17:36:17 UTC

After student 2 shares, I will then ask another student what differences they saw in student 1 way and student 2's way of solving, if any. If not, what could they have done differently, but received the same answer? This is important because students must be able to recognize there are multiple steps in solving equations and some must take place a specific times (i.e. simplifying) and some it does not matter (i.e. combining like terms across sides).

Student 1 Shares

gdonato3 — 2024-07-13 17:36:41 UTC

Student will share & I will question students strategy by asking what prior knowledge did they use to solve the equation this way?

Student 3 Shares

gdonato3 — 2024-07-13 17:41:09 UTC

After the final student shares, I will have that student discuss why they solved this way. If it is similar to the way student 1 and student 2 used, I will ask this student why they used this way.

Additional Examples

gdonato3 — 2024-07-13 17:42:53 UTC

I will have checked students papers as they were walking around. I will use what I see from students to drive the questioning strategies. At this time, I will call on students who I saw solving a different way to explain what they did. I will question other students on the student's strategy with connected questions to the specific strategy.

Exit ticket

gdonato3 — 2024-07-13 17:44:29 UTC

Students will complete this activity with an exit ticket. I will encourage students to solve the equation a different way on their exit ticket that they did for the example problem. Students will explain on the exit ticket each step they took and why they took those steps. This will help students gain an understanding of why steps are used during each step of solving equations.