Math is In My World

5.NBT.B.7 · Unit 1 · Lesson 3

Name   Period

Objectives / Objetivos

Content Objective: I can represent a real-world situation with a tape diagram or table and use decimal operations to solve it.

Language Objective: I can describe my tool using the words tape diagram, table, and this represents ___ .

Key Idea / Idea clave

Math Practices: Visual Models & Tools. 1. Select the mathematical tool (tape diagram, number line, grid) that best represents the quantities. 2. Label all parts and units clearly. 3. Connect visual relationships directly to numerical expressions

Vocabulary / Vocabulario

Term / TérminoDefinition / Definición
representation
representación		A picture, diagram, table, or equation that shows the mathematics in a situation.
Un dibujo, diagrama, tabla o ecuación que muestra las matemáticas de una situación.
tape diagram
diagrama de cintas		A rectangle cut into equal parts that helps you visualize how a total breaks apart.
Un rectángulo dividido en partes iguales que te ayuda a visualizar cómo se separa un total.
tool
herramienta		Anything you choose to help you see relationships and solve a problem — a table, a diagram, a graph.
Cualquier cosa que eliges para ver relaciones y resolver un problema: una tabla, un diagrama, una gráfica.
ordered pair
par ordenado		Two numbers that go together, like a time and a number of trips, that you can plot as a point.
Dos números que van juntos, como un tiempo y un número de viajes, que puedes graficar como un punto.
round trip
viaje de ida y vuelta		A complete journey from the start, to the destination, and back to the start.
Un recorrido completo desde el inicio hasta el destino y de regreso al inicio.

Practice Preview / Vista previa de práctica

Read each task. Show your work in the spaces provided and explain how you know.

1. One tram ride takes 12.5 minutes. How many minutes do 10 rides take?

  1. A 1.25 minutes
  2. B 22.5 minutes
  3. C 125 minutes
  4. D 1,250 minutes

Answer:

2. The 50 rides take 625 minutes. About how many HOURS is that?

  1. A About 6.25 hours
  2. B About 10.42 hours
  3. C About 12.5 hours
  4. D About 62.5 hours

Answer:

3. How does the answer change for 2,000 passengers? Each ride carries 80 passengers and takes 12.5 minutes. How many MINUTES are needed?

  1. A 31.25 minutes
  2. B 300 minutes
  3. C 312.5 minutes
  4. D 3,125 minutes

Answer:

4. Apply — What Time Is It? The new year starts at midnight on January 1st. What time will it be 2,022 minutes after midnight?

  1. A 8:22 p.m. on January 1
  2. B 9:42 a.m. on January 2
  3. C 9:42 a.m. on January 1
  4. D 9:42 p.m. on January 2

Answer:

Reflection / Reflexión

One thing I learned today / Una cosa que aprendí hoy: