Do Now 9/16/11 Take out HW from last night. Text p. 20, #10-36 evens, #40 & 41 Did you hand in the POTW#1? Copy HW in your planner. Text p. 24, #7-20 all, 22-30 evens, 36 & 37 In your journal, list as many “clue” words you can think of that indicate a mathematical operation. For example, the word ‘plus’ would indicate the operation of addition.

Homework Text p. 20, #10-36 evens, #40 & 41 10). 14 12). 14 14). 16 16). 320 18). 30 20). 106 22). 70 24). 9 26). 16 28). 26 30). 9 32). 420 seconds 34). 2,600 watts 36). a) 100 °C b) 212 °F 40). C 41). H

Objective SWBAT translate numbers, operations, and variables into expressions

Section 1.4 “Translating Words into Math” Verbal model describes a problem using words as labels and using math symbols to relate the words ‘sum’ ‘minus’ ‘divided’ ‘times’

Writing Algebraic Expressions Operation Verbal Phrase Expression Addition Subtraction Multiplication Division Add, sum, plus, total, more than, increased by + 5 + n k + 12 Subtract, difference, less than, minus, decreased by, take away 12 – p x – 12 – 3 x 5 3(d) ab p ∙ k Product, times, of, multiplied by x Quotient, divided by, divided into ÷ k/7 14 ÷ r

Translate verbal phrases into expressions 7 less than a number n n – 7 b. 3 times a number y 3y c. the difference of a number x and the number m x – m d. the sum of 12.5 and the number c 12.5 + c

Translate verbal phrases into expressions 7 times the sum of a number n and 2 7(n + 2) b. the sum of 4 times a number y and 2 4y + 2 c. the quotient of 50 and the quantity of m plus 6 50 m + 6 d. 28 multiplied by the quantity of c less 8 28(c – 8)

NJASK7 prep Homework Text p. 24, #7-20 all, 22-30 evens, 36 & 37