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RCN Lesson 5: Multiplication and Division as an Unknown Factor

Last updated over 2 years ago
4 questions
Note from the author:
Develop Understanding
Today's Learning Goal(G3, U4, L6,&U8, L10):
  • Explain the relationship between multiplication and division equations.
  • Interpret division equations to multiplication equations with a missing factor.
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.
Develop Understanding
Today's Learning Goal(G3, U4, L6,&U8, L10):
  • Explain the relationship between multiplication and division equations.
  • Interpret division equations to multiplication equations with a missing factor.
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.
Required
1

Jump Start Activator- (5 minutes)



What do you notice? What do you wonder?

Required
0

Launch - A1: Equations about Onions (10 min)

Explore A2 (15min) - At the Farmer's Market.

(On paper)

Complete each row. Be prepared to explain your reasoning.

Card Sort - Find the Match (15 min)

Find a classmate whose card represents the same situation or quantities as your card does. Be prepared to explain why your cards belong together.

Lesson Synthesis - (5 min)


Today we focused on connecting multiplication and division equations that represent the same situation.

The two equations here have the same parts: 2, 14, and an unknown amount.
Required
0

Why are they arranged differently if they represent the same situation?

Cool Down - (5 min)

Required
4

There are 35 books on the bookcase. There are 7 books on each shelf. How many shelves are there? Explain how the equations
both represent the situation.

Khan Academy for 30 min!

Closure Questions:

  • How does an area diagram show us the relationship between multiplication and division?
  • How does a tape diagram or equal-groups diagram show multiplication and division?