Exploring Equivalent Ratios and Proportions

In this video, Bobo the chimp prepares a banana dinner for his friends, expecting only two guests. However, his friend Bam-Bam unexpectedly brings 22 more chimps. Bobo must calculate how many bananas are needed using equivalent ratios. Initially, Bobo uses a ratio of 5 bananas per chimp for 3 chimps, which simplifies to 5:1. With 23 chimps now, Bobo calculates he needs 115 bananas. Unfortunately, he only has 110 bananas, leading to tension with Bam-Bam. The video demonstrates how to solve ratio problems using both simplified and unsimplified fractions.

How many bananas did Bobo initially place on each plate?

• 10

• 7

• 3

• 5

Tags

CCSS.1.OA.A.1

How many chimps unexpectedly arrived at Bobo's dinner?

• 10

• 15

• 20

• 22

Tags

CCSS.1.NBT.A.1

What is the simplified ratio of bananas to chimps that Bobo used initially?

• 5:1

• 4:1

• 6:1

• 3:1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

How many bananas are needed to feed 23 chimps using the same ratio?

• 120

• 115

• 110

• 100

Tags

CCSS.6.RP.A.3B

What is the equivalent ratio of bananas to chimps for 23 chimps?

• 110:22

• 100:20

• 120:24

• 115:23

What is the unsimplified fraction used to solve the ratio problem?

• 10 over 2

• 15 over 3

• 20 over 4

• 25 over 5

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What equation do we get after multiplying both denominators away in the unsimplified fraction?

• 5b = 575

• 4b = 460

• 3b = 345

• 2b = 230

Tags

CCSS.4.OA.C.5

How many bananas did Bobo have in his pantry?

• 115

• 110

• 105

• 100

Tags

CCSS.1.NBT.A.1

Who did not get any bananas at the end of the dinner?

• None of the above

• Bobo

• Bam-Bam

• All chimps

Tags

CCSS.RI.6.3

CCSS.RI.7.3

CCSS.RI.8.3

CCSS.RI.9-10.3

CCSS.RL.5.3