1. Expressions Lesson 6.1 Group B Lesson Study Test 5 12b

2. Prior Knowledge Think-pair-share - multiplication clue words: double, times, each, factor, product, twice, multiplied by, per____(unit)

3. Prior Knowledge Think-pair-share - division clue words: share, equal groups, distribute, divide, break into, how many needed

4. Objective I will create and evaluate an algebraic expression using multiplication or division. I will use effective language in academic discourse. verbs

5. Page 5 of Discourse Book Today we want to use one more page of our discourse book. So before you disagree or if you need more information, please turn to page 5 of your booklet and ask a clarifying question.

6. 1) Expression or 5) Equation? n + 3 t + 11 23 + n = 31 16 – n 27 – 18 = n Explain how you know the difference between an expression and an equation.

7. Expressions An expression has numbers and operation signs. An expression does NOT have an ________ ______. An algebraic expression has a _________ (a letter or symbol that represents a number). equal sign variable

8. Numerical Expressions Example: Ismael bought 5 bags of marbles. There were 12 marbles per bag. Translate this into an expression. Clue word: 5 x 12 5(12) or 5 12 per

9. Numerical Expressions Example: Ismael has 60 marbles and wants to share equally with 5 friends. Translate this into an expression. Clue word: 60 ÷ 5 Be prepared to justify your answer. share

10. Example: Chloe has 3 cases filled with CDs, every case holds 24 CDs. Translate this into an expression. Clue word: 3 X 24 Be prepared to defend your reasoning! Numerical Expressions every OR 3(24) OR 3 24

11. Example: Mrs. Smith canned 20 jars of peaches each day from Monday through Friday. Translate this into an expression. Clue word: 20 x 5 Be prepared to unpack your thinking! Numerical Expressions each 20(5) or 20 5

12. Numerical Expressions Example: Katie bought 12 boxes of canned dog food. Each box had 9 cans of dog food. Translate this into an expression. Clue word: 12 + 9 each

13. Algebraic Expressions Example: Pablo scored 3 goals in each soccer game. There were several soccer games. Translate this into an expression. Clue word: 3 x g 3g or 3(g) or 3 g What does the variable (g) represent? each

14. Example: Susan bought several boxes of pencils. There were 15 pencils per box. Translate this into an expression. Clue word: b x 15 15b or 15(b) or 15 b What does the variable (b) represent? Algebraic Expressions per

15. Example: Beth runs 4 days a week. She runs the same number of miles each day. Translate this into an expression. Clue word: 4 x m 4m or 4(m) or 4 m What does the variable (m) represent? Algebraic Expressions each

16. Find the value of: (4 n) if n = 7. (4 7 ) 28 Algebraic Expressions

17. Find the value of: (13n) if n = 2. Algebraic Expressions

18. Find the value of: (14 n) - 3 if n = 5. Algebraic Expressions

19. Write and evaluate an expression. On your paper: 1.Write a multiplication or division word problem 2.Underline the clue word(s) 3.Write the multiplication or division expression 4.Explain what your variable represents 5.Illustrate Be prepared to use discourse: Unpack your thinking, paraphrase, and politely agree or disagree

20. Example: Problem: Vincent had two pockets filled with the same amount of coins. Expression: 2 c Variable: c = coins Illustrate:

21. Write and evaluate an expression. On your paper: 1.Write a multiplication or division word problem 2.Underline the clue word(s) 3.Write the multiplication or division expression 4.Explain what your variable represents 5.Illustrate Be prepared to use discourse: Unpack your thinking, paraphrase, and politely agree or disagree