Do Now 9/14/10 Take out HW from last night. Take out HW from last night. Text p , #4-36 evenText p , #4-36 even Copy HW in your planner. Copy HW in your planner. Text p. 20, #1-10 allText p. 20, #1-10 all Text p , #2-42 evenText p , #2-42 even Mid-Chapter 1 QUIZ WednesdayMid-Chapter 1 QUIZ Wednesday Chapter 1 TEST FridayChapter 1 TEST Friday In your journal, answer the following question. In your journal, answer the following question. Pretend that you are teaching a 3 rd grade class and had to explain the definition of an equation. How would you explain it and what kind of visual object or model would you use?

Homework Text p , #4-36 even 4). 6y 4). 6y 6). 50/h 6). 50/h 8) x 8) x 10). p² ). 3w ). C 16). 5 – p 18) j

20). m/60 22). 8 students per group 24). 2.4 runs per inning 26). Feet should cancel out and not be squared; $48 28). 1 3/16 mi. in 1 min 55 sec is greater 30). 32). 98g; 1960 tons 34). You earn $30 for shoveling driveways. If you shoveled for 4 hours than you earn $7.50 per hour. 36). 36s + 60l; 36(12) + 60(5) = = 732 sec Homework Text p , #4-36 even

Mid-Chapter 1 Review Section 1.1- Evaluate Expressions Section 1.1- Evaluate Expressions when x is equal to 5. Section 1.2- Order of Operations Section 1.2- Order of Operations Section 1.3- Write Expressions Section 1.3- Write Expressions The sum of twice a number d and seven. Evaluate the expression.

Objective SWBAT translate verbal sentences into equations and inequalities. SWBAT translate verbal sentences into equations and inequalities.

Section 1.4, “Write Equations and Inequalities” Section 1.4, “Write Equations and Inequalities” EQUATION – EQUATION – mathematical sentence formed by placing an “=“ between two expressions y² – 8 = 12 y² – 8 = * 22 = 14 - z 13 * 22 = 14 - z 11 x a = x a = ÷ x = 30 5 ÷ x = 30

INEQUALITY – INEQUALITY – mathematical sentence formed by placing a, or ≥ between two expressions. y² – 8 < 12 y² – 8 < * 22 ≥ 14 - z 13 * 22 ≥ 14 - z 11 - a ≤ a ≤ ÷ x > 30 5 ÷ x > 30

Writing Equations and Inequalities SymbolMeaningKey phrases =Is equal toThe same as <Is less thanFewer than ≤ Is less than or equal toAt most, no more than >Is great thanMore than ≥ Is greater than or equal to At least, no less than

Translate verbal phrases into equations or inequalities Verbal Phrase Equation/Inequality a. the difference of twice a number k and 8 is 12. b. the product of 6 and a number n is at least 24. c. a number y is no less than 5 and no more than 13. 2k – 8 = 12 6n ≥ 24 5 ≤ y ≤ 13

SOLUTION– when you substitute for a variable the solution can be either TRUE or FALSE. 2k – 8 = 12 6n ≥ ≤ y ≤ 13 Substitute 10 for each variable. Is 10 the solution for each equation/inequality? SOLUTION SOLUTION NOT A SOLUTION 2(10) – 8 = 12 6(10) ≥ ≤ (10) ≤ 13

Homework Text p. 20, #1-10 allText p. 20, #1-10 all Text p , #2-42 evenText p , #2-42 even Mid-Chapter 1 QUIZ tomorrowMid-Chapter 1 QUIZ tomorrow Guided Practice Text p. 22, #2-7 allText p. 22, #2-7 all