TELL ME SOMETHIN’ GOOD!

Strategy #3: Know Your Place! If the solution seems straight-forward halfway through the test or beyond, you’re not thinking about the problem correctly!

Trashketball 1)Divide class into two teams 2)One whiteboard, marker and eraser per team 3)Correct responses earn your team the opportunity to shoot a trashket 4)Highest trashket total wins

Activity Predictions 1)Write your ratio of trashkets to misses 2)Write your ratio of trashkets to total shots 3)Write your ratio of misses to total shots 4)If your scores continued at this rate, approximately how many misses would be associated with 12 trashkets? 5)If your scores continued at this rate, approximately how many trashkets would you make out of 30 shots? PredictionsActual

Lesson #3: Ratios and Proportions What is a ratio? Indication of relative amounts for two quantities What is a proportion? An equation that sets two ratios equal Similar triangles have proportional corresponding side lengths

Example 1 For every 40 games a baseball team plays, it loses 12 games. What is the ratio of the team’s losses to wins? a.3:10 b.7:10 c.3:7 d.7:3 e.10:3

Example 2 In a particular class, the ratio of boys to girls is 2:3. a.If there are 8 boys, then how many girls are there? b.If there are 9 girls, then how many students are there? c.If there are 25 students, then how many girls are there?

Example 3 At a particular elementary school, the ratio of teachers to students is 1:22. a.How many teachers are present on campus if there are 660 students? b.How many people are present on campus (students and teachers) if there are 10 teachers? c.How many teachers are present on campus if there are 460 people on campus?

Example 4 If a $200 prize is divided up among three people in a 1:4:5 ratio, then how much does each person receive?

Example 5 A bird can fly 420 miles in one day if it flies continuously. At this rate, how many miles can the bird fly in 14 hours?

Ratio/Proportion Problems from PT # , 15 Very Challenging: 2-20

Activity Actual Calculations 1)Write your ratio of baskets to misses 2)Write your ratio of baskets to total shots 3)Write your ratio of misses to total shots 4)If your scores continued at this rate, approximately how many misses would be associated with 12 baskets? 5)If your scores continued at this rate, approximately how many baskets you would make out of 30 shots?

Work Time 1)Ratios and Proportions Practice Problems (collected before you leave today) 2)ProProfs Pratice Problems on a topic of your choice 3)Explore the app you will be presenting on next week