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Lesson Menu Five-Minute Check (over Lesson 7–1) Main Idea Example 1:Problem-Solving Investigation

Main Idea/Vocabulary I will choose the best strategy to solve a problem.

Example 1 MAI: I noticed that there were more dogs than cats in the veterinarian’s waiting room. The vet said that for about every 3 dogs he sees, he sees 2 cats. If 20 animals were brought in, I wonder how many would be dogs? YOUR MISSION: Find about how many dogs the vet will see if 20 animals come into the office.

Example 1 Understand What facts do you know? You know that for every 3 dogs, there are 2 cats. What do you need to find? You need to find the number of dogs.

Example 1 Plan To solve this problem, you can use red and yellow counters to act out how many dogs and cats the vet will see.

Example 1 Solve Use red counters to represent the dogs and yellow counters to represent the cats. Place 3 red counters and 2 yellow counters in a group. Make groups of 5 counters until you have 20 counters.

Example 1 Solve Add the number of red counters to find about how many dogs the vet will see = 12 Answer: So, about 12 of the animals will be dogs.

Example 1 Check Work backward. Start with 12 red counters and 8 yellow counters. Remove groups of 3 red and 2 yellow counters until none remain.

End of the Lesson End Lesson

Resources Five-Minute Check (over Lesson 7–1) Image Bank Math Tool Chest Use an Appropriate Graph

1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 7–1) A.mean: $15, median: $5, mode: $4 B.mean: $14, median: $4, mode: $5 C.mean: $12, median: $6, mode: $5 D.mean: $14, median: $5, mode: $6 Find the mean, median, and mode of the set of data. Costs of sandwiches: $7, $4, $6, $4, $4

1.A 2.B 3.C 4.D Five Minute Check 2 (over Lesson 7–1) Find the mean, median, and mode of the set of data. Miles traveled: 22, 20, 19, 32, 20, 24, 24 A.mean: 22, median: 23, mode: 21 B.mean: 24, median: 23, mode: 22 and 24 C.mean: 23, median: 22, mode: 20 and 24 D.mean: 22, median: 23, no mode

1.A 2.B 3.C 4.D Five Minute Check 3 (over Lesson 7–1) Find the mean, median, and mode of the set of data. Test scores: 92, 91, 87, 89, 88, 93 A.mean: 91, median: 87, no mode B.mean: 87, median: 88, mode: 89 C.mean: 88, median: 87, mode: 91 D.mean: 90, median: 90, no mode

1.A 2.B 3.C 4.D Five Minute Check 4 (over Lesson 7–1) Find the mean, median, and mode of the set of data. Inches of rain: 7.1, 9.3, 7.1, 5.9, 9.1, 8.4, 4.8, 6.0 A.mean: 6.5, median: 5.9, mode: 8.4 B.mean: 7, median: 7.1, mode: 7.1 C.mean: 8, median: 7.1, mode: 8.4 D.mean: 6, median: 5.3, mode: 7.1

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