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RCN Lesson 7: Interpret and Solve Multiplicative Comparison Problems

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Last updated almost 3 years ago
14 questions
Note from the author:
Develop Understanding
Today's Learning Goal(G4, U5, L4&L5) :
  • Interpret different representations of multiplicative comparison (situations, diagrams, and equations)
  • Represent and solve multiplicative comparison problems, including those involving unknown factors.
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(G4, U5, L4&L5) :
  • Interpret different representations of multiplicative comparison (situations, diagrams, and equations)
  • Represent and solve multiplicative comparison problems, including those involving unknown factors.
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 ACTIVATOR - (5 MIN)

Required
1
Question 1
1.

1.) Diego read 8 times as many books as Lin read. Lin read 7 books.
a.) Equation:
b.) Diagram:
c.) How many books did Diego read?

Required
1
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1
1

LAUNCH - Represent a Missing Amount: (7 min)

Required
1
Question 5
5.

DO Problems 1-3 and Submit on formative.

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1
Question 6
6.

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1

EXPLORE A1- Diagrams to Solve Multiplicative Comparison Problems: (10 min)

Complete on paper.

Required
1
Question 8
8.

Here are four sets of descriptions, diagrams, and equations that compare pairs of quantities.
Match each description to a diagram and an equation that represent the same situation. Be prepared to explain your reasoning. (English)

Aquí hay cuatro conjuntos de descripciones, diagramas y ecuaciones que comparan pares de cantidades. Relaciona cada descripción con un diagrama y una ecuación que representen la misma situación. Esté preparado para explicar su razonamiento. (Spanish)

Explore A2- The Book Fair and More Book Fair Purchases


Complete problems 1-5 on formative.

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1
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1
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Lesson Synthesis - (3min)

In today’s lesson you solved multiplicative comparison problems in which different pieces of information were missing. (English)

En la lección de hoy resolviste problemas de comparación multiplicativa en los que faltaban diferentes piezas de información. (Spanish)
How would you complete the equations and comparison statements to make them true? Explain how you know? (English)

¿Cómo completarías las ecuaciones y los enunciados de comparación para hacerlos verdaderos? Explica como lo sabes? (Spanish)

Cool Down - (5 min)

Required
1
Question 14
14.

Lin scored 6 points in her basketball game on Saturday. She scored 3 times as many points in her basketball game on Sunday. How many points did Lin score altogether in the two games? Explain or show your reasoning. (English)


Lin anotó 6 puntos en su partido de baloncesto el sábado. Ella anotó 3 veces más puntos en su juego de baloncesto el domingo. ¿Cuántos puntos anotó Lin en total en los dos juegos? Explique o muestre su razonamiento. (Spanish)

KHAN ACADEMY FOR THE REST OF THE CLASS!!

Question 2
2.

2.) Tyler has some books. Clare has 72 books, which is 12 times as many books as Tyler has.
a.) Equation:
b.) Diagram:
c.) How many books does Tyler have?

Question 3
3.

3.) Noah read 13 books. Eleana read 130 books.
a.) Equation:
b.) Diagram:
c.) Complete the statement: [blank] read [blank] times as many books as [blank]

Question 4
4.

1.) Diego leyó 8 veces más libros que Lin. Lin leyó 7 libros. a.) Ecuación: b.) Diagrama: c.) ¿Cuántos libros leyó Diego? 2.) Tyler tiene algunos libros. Clare tiene 72 libros, que es 12 veces más libros que Tyler. a.) Ecuación: b.) Diagrama: c.) ¿Cuántos libros tiene Tyler? 3.) Noah leyó 13 libros. Eleana leyó 130 libros. a.) Ecuación: b.) Diagrama: c.) Complete la afirmación: [en blanco] leyó [en blanco] veces más libros que [en blanco]

Question 7
7.

Question 9
9.

For this year’s book fair, a school ordered 16 science books and 6 times as many picture books.
Last year, the school ordered 4 times as many picture books and 4 times as many science books than they did this year.
  1. How many picture books were ordered this year?

Question 10
10.

2.) How many picture books were ordered last year?

Question 11
11.

How many more science experiment books were ordered last year than this year?

Question 12
12.

4.) At the book fair, they collected $13 Tuesday morning and 8 times as much as that in the afternoon. How much money did they collect at the book fair on Tuesday?

Question 13
13.

On Thursday, Mai purchased a biography for $16 and a comic book for $3. That day, the book fair’s amount of total sales was 9 times as much money as Mai spent. What was the amount of total sales for the book fair on Thursday?