SAT Math Week 9: Manipulating & Solving Equations

lilijia Post in SAT math
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Welcome our new friend, Tina!

Flexibility Assessment:
Thanks to everyone for participating in the pilot Flexibility Assessment from Harvard Graduate School of Education. Your feedback will help to revise this assessment. This study will be carried out in Finland, Sweden, Spain, America, and China. We learned that for some problems, there are some “innovative strategies”. Be familiar with the properties and principles in math, you can solve problems faster, and better:)

I was deeply impressed that several of you can solve many (even all) of the problems in an innovative way in Part I (the first trial). Good job! Please remember to apply these strategies in your SAT tests to save time 😛

Responding to the feedback from Emma’s mom, in the following lessons, I would love to share some strategies to 1) read long questions 2) reduce the workload of calculating during the SAT test.

Lesson Review:
We discussed Page 57: Ex(3n +1) and went through the 12 example problems in Chapter 8. Some useful techniques in dealing with equations include but not limited to:
1) combine like terms
2) square and square root
3) cross-multiply (fractions)
4) factoring
5) treat complicated expressions as one unit
6) solve for expressions, rather than any one variable
7) Guess and check

Image result for equation solving strategies

Homework:
Page 58-62, Ex 1-24
(everyone picks 2 problems that you feel most challenged and would like us to explain in class, and label them on your textbook)
(everyone prepares to explain on board in class!We will do the shuffling cards again:P)

We will explore more equation solving strategies (Chapter 9) next week. See you then!

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