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RCN Lesson 12: Dividing Multi-digit Dividends by a One-digit Divisor

Last updated over 2 years ago
21 questions
Develop Understanding
Today's Learning Goal: (U9,L6 and U6, L13,L14)
  • Reason about division of two- and three-digit numbers in situations involving factors and multiples
  • Divide up to four-digit numbers by single digit numbers using place value strategies
Today's Materials:
  • Laptop
  • Laptop charger
  • Pen/Pencil/Paper (optional)
Please complete the Jump Start (activator). You have 5 minutes before we review. This is independent it should be silent.
Reminders:
1. Ready for class
2. No cellphones
3. Volume must be low.
4. Read and follow all directions
5.) Take your bag off and immediately begin the Activator.

Jump Start - 5 min

No calculators. Should be done independently

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Launch- Dividing Like a Pro (10 min)


I'll model question 4
We'll Try question 5
You Try! question 6
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Activity 1 - More Snacks for a Class Party (15 min)

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Priya’s mom made 855 gulab jamuns for the class to share. Priya gave 5 to each student in the class.
How many students are in Priya’s class? Explain or show your reasoning.


Han’s uncle sent in 108 chocolate-covered breadsticks for a snack. The students in Han’s class are seated at 6 tables. Han plans to give the same number of breadsticks to each table.
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How many breadsticks does each table get? Explain or show your reasoning.

Diego’s aunt buys 840 paletas, which are ice pops, for a class party. At the local market, paletas come in 7 different flavors. She buys the same number of paletas of each flavor.
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How many flavored paletas did Diego's aunt buy for the class party?

Activity 2 - Write Multiples (15 min)

Han starts writing multiples of a number. When he reaches 104, he has written 8 numbers.
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What number is Han writing multiples of?

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What is the 15th multiple of this number?

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Han gets to 286. How many numbers has he written at that point?

Kiran wants to know how many multiples of 7 are between 0 and 150.
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He thinks he can use division to find out. Do you agree? Explain your reasoning

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How many multiples will he find? Show your reasoning.

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Is 150 a multiple of 7? Show how you know.

Lesson Synthesis - (7 min)

Today we solved problems involving division of whole numbers. We thought about the kinds of division problems we were solving—whether we were trying to find the number of groups or the amount in each group.
Eight students are sharing 96 breadsticks equally. How many breadsticks would each student get?
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How is this situation related to division?

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What are we finding out when we divide 96 by 8?

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What are some ways to find the answer?

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What equations could we write to represent the problem and the solution, or how we find the solution?

Cool Down - Divide like a Pro (5 min)

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Closure Questions:

  • What strategies you liked the most?
  • Name the components:
  • 15 / 3 = 5