Solving Word Problems Putting Your Translation Skills To
Solving Word Problems Putting Your Translation Skills To Work
Let’s Make A Plan • Verbal Model • Ask yourself what you need to know how to solve the problem. • Labels • This means define the variable • Algebraic Model • Write a math equation or inequality using your labels and verbal model • Solve • Check to make sure your solution makes sense
Let’s Try Together • You and some friends are at a Chinese restaurant. You order several $2. 00 plates of wontons, egg rolls, and dumplings. Your bill is $25. 20, which includes tax of $1. 20. Use modeling to find out how many plates you ordered. Start with a verbal model. What do you know about buying food in the restaurant and how you find your bill.
Verbal Model • • Cost of food + tax = amount paid How do you determine cost of food? Each plate costs $2. 00 so # of plates $2. 00 = cost of food • Final verbal model • $2. 00 # of plates + tax = amount paid
Labels • • X = number of plates you purchased 2 = amount paid per plate 1. 20 = tax paid on food 25. 20 = amount paid for food and tax
Algebraic Model • Substitute the labels for the words in the verbal model • $2. 00 # of plates + tax = amount paid • 2 x + 1. 20 = 25. 20
Solve it and Check your answer • 2 x + 1. 20 = 25. 20 - 1. 20 2 x = 24. 00 2 2 x = 12. 00 There were 12 plates of food ordered 2(12) + 1. 20 = 25. 20 ? 24 + 1. 20 = 25. 20 √
Pratice Workbook Page 17 Verbal Model • $8 per hat has to equal $2480 Labels • 8 = cost of one hat x = number of hats • 2480 = amount they want to make Algebraic Model 8 x = 2480 Solution x = 310 hats Check 8 310 = 2480 √
Practice 17 and 18 # 2 and 3
Where are we now? • • Vocab List is due on Friday during the test Test over all of chapter 1 will be Friday Tutoring available Tues – Fri at 8: 15 AM Also Wednesday after school from 4: 00 – 5: 30 PM • Don’t forget homework Pages 39 – 40 • Walk or SUBWAY, Kudzu and Stereo Problems (#5 -20)
- Slides: 10