World’s Record Folk Dance

10 min

Narrative

The purpose of this Warm-up is to introduce the context of a world-record event about the largest Peruvian folk dance, which will be useful when students solve problems about this event in the lesson. While students may count many things in the image, the number of groups of 8 people is the important discussion point.

This is the first time students experience the How Many Do You See? routine in grade 5. Students are familiar with this routine from a previous grade, however, they may benefit from a brief review of the steps involved.

Launch

  • Groups of 2
  • “How many do you see? How do you see them?”  
  • Display the image.
  • 1 minute: quiet think time
Teacher Instructions
  • Display the image. 
  • “Discuss your thinking with your partner.”
  • 1 minute: partner discussion
  • Record responses.

Student Task

How many do you see? How do you see them?

Sample Response

Sample responses:

  • 18: I see 18 groups of 8 dancers and then a lot of parts of other groups of dancers.
  • 144: There are 144 dancers in full circles of 8.
  • 223: I count 18 full groups of 8 people, and 79 people around the edges, which is 223 people.
  • 272: I see at least a part of 13 groups with dark pink dresses, 5 groups with light pink dresses, 5 groups with dark blue dresses, 5 groups with light blue dresses, and 6 groups with yellow dresses, which is 34 groups. If each group has 8 people, that's 272 people.
Activity Synthesis (Teacher Notes)
  • “How could we figure out how many people are in the picture?” (There are 8 people in each circle so we could count the number of circles we can see and multiply it by 8, and then add in the extra people that are parts of circles on the edges of the image.)
  • “This picture shows the largest Peruvian folk dance. Today we are going to solve some problems about this event.”
Standards
Building Toward
  • 5.NBT.6·Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
  • 5.NBT.B.6·Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.

20 min

15 min