Unit Rate Rivalry How to Play Pair up with someone in the group to play against. For each of the 6 questions, find the unit rate. Show your processes.

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Presentation transcript:

Unit Rate Rivalry

How to Play Pair up with someone in the group to play against. For each of the 6 questions, find the unit rate. Show your processes in words and in numbers on your recording sheets. Check with your opponent and compare answers. If your answer is correct and you agree, you each score 10 points. If you do not agree, check with the answer key (on the next slide) and the person who had the correct answer scores 10 points, while the other scores 5 points. Continue this process for all 6 problems, and the Bonus Problem. The Bonus problem is worth 20 points. Whoever gets it correct first, gets the 20 points.

Our purpose together today is to: Define unit rate. Learn how to find unit rates using your own methods. Identify vocabulary that refers to unit rate. Understand the uses of unit rates. We will have a competition: girls –vs- boys! Whoever racks up the most points at the end of the competition gets an extra 10 points on today’s quiz grade!

How to score points! 5 points for presenting a method to find a solution to the problem – one boy & one girl per problem (a different boy & girl each time). 1 point for identifying vocabulary that refers to unit rate - per problem. 10 points for anyone who can define unit rate at any point throughout the activity! 10 points for the first person (boy or girl) to find a solution to the bonus round!

Girls –vs- Boys Rate Statement Girls Points Big Red Runner VW Bug Roses Row Boat Choo Choo Train Bonus Round Total Points Rate Statement Boys Points Big Red Runner VW Bug Roses Row Boat Choo Choo Train Bonus Round Total Points

1) A 12 pack of Big Red costs $3.00, how much for one Big Red?

= 12 packs cost $3.00 so 1 pack costs X dollars. x =.25 1 pack of Big Red is $0.25

2) Joshua can run 15 miles in 2 hours, how many miles can he run in one hour?

Joshua can run 15 miles in 2 hours, therefore he can run X miles in 1 hour. = x = 7.5 He can run 7.5 miles in 1 hour.

3) Jeff’s VW bug will go 390 miles on 15 gallons of gas, about how many miles will his VW bug go on one gallon of gas?

Jeff’s bug can go 380 miles on 15 gallons of gas, therefore it can go about X miles on 1 gallon of gas. = x = 26 Jeff’s car can go 26 miles on ONE gallon of gas.

4) Joseph bought a dozen roses for $4.80 for his girlfriend, how much did he pay for each rose?

Joseph bought a dozen roses for $4.80 therefore, he paid X dollars for 1 rose. = x =.40 He paid.40 for each rose.

5) It took Manny 30 minutes to row his boat across a lake. The lake was 750 yards across. What was Manny’s average rowing speed?

It took Manny 30 minutes to row 750 yards, therefore he could row x yards in 1 minute. = x = 25 Manny can row 25 yards in 1 minute.

6) A train can travel 650 miles in two and a half hours, how far can it travel in one hour?

A train that can travel 650 miles in 2.5 hours, can travel x miles in 1 hour. = x = 260 The train can travel 260 miles in 1 hour.

Which is a better buy? (Which unit rate is CHEAPER?) A pack of Orbit chewing gum that costs $1.50 for 25 sticks? Or A pack of Orbit chewig gum that costs $1.20 for 12 sticks?