Math is Mine

MPP.3 · Unit 1 · Lesson 1

Name   Period

Objectives / Objetivos

Content Objective: I can describe the ways we are all doers of math, and compare my math story with a classmate's.

Language Objective: I can tell my math story using the words strength, challenge, and I use math when ___ .

Key Idea / Idea clave

Math Practices: Mindset & Problem Solving. 1. Make sense of the problem and persevere in solving it. 2. Look for entry points and decompose complex tasks into manageable parts. 3. Use estimation and mental math to check for reasonableness

Vocabulary / Vocabulario

Term / TérminoDefinition / Definición
doer of math
persona que hace matemáticas		Anyone who uses mathematical thinking — which is everyone, every day.
Cualquiera que use el pensamiento matemático, es decir, todos, todos los días.
math story
historia matemática		Your own history with mathematics — what you have done, felt, and learned so far.
Tu propia historia con las matemáticas: lo que has hecho, sentido y aprendido.
strength
fortaleza		Something you already do well and can share with others.
Algo que ya haces bien y puedes compartir con otros.
decompose
descomponer		To break a number into parts that add, subtract, multiply, or divide back to it.
Separar un número en partes que se combinan para volver a formarlo.
estimate
estimar		A reasoned answer that is close enough to be useful, without counting every one.
Una respuesta razonada, lo bastante cercana para ser útil, sin contar todo.

Practice Preview / Vista previa de práctica

  1. About how many people can ride the Ferris wheel at one time if it has 20 cars that each hold about 4 people?
    1. About 80
    2. About 24
    3. About 5
    4. About 400
  2. Which decomposition of 78.5 uses multiplication correctly?
    1. 39.25 × 2
    2. 39.25 × 3
    3. 78.5 × 2
    4. 39 × 2
  3. A Ferris wheel holds about 78 riders per turn and makes 6 turns an hour. About how many riders per hour?
    1. About 468
    2. About 84
    3. About 13
    4. About 780
  4. Which set shows FIVE different correct decompositions of 78.5?
    1. 70 + 8.5, 78 + 0.5, 80 − 1.5, 39.25 × 2, 157 ÷ 2
    2. 70 + 8.5, 78 + 5, 80 − 1.5, 39.25 × 2, 157 ÷ 2
    3. 70 + 8.5, 78 + 0.5, 80 + 1.5, 39.25 × 2, 157 ÷ 2
    4. 70 + 8.5, 78 + 0.5, 80 − 1.5, 39.25 × 3, 157 ÷ 2

Reflection / Reflexión

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