Grade 6 Mathematics · Pre-UnitStandard 5.NBT.B.7

Lesson 1.31.1–1.3 Catch-Up

Start hereWords, worked example, and sentence starters

Name Date Period

Learning target I can show I am caught up on Lessons 1.1–1.3 by using each lesson's big idea in mixed practice.

Start hereWords for this lesson

Read each word before you begin. Say it out loud.

WordWhat it meansExample
doer of mathSpanish: persona que hace matemáticas Anyone who uses mathematical thinking — which is everyone, every day. Splitting a bill 4 ways at dinner — that is a doer of math.
math storySpanish: historia matemática Your own history with mathematics — what you have done, felt, and learned so far. “In 3rd grade I hated fractions; this year I can explain them.”
strengthSpanish: fortaleza Something you already do well and can share with others. “I am good at mental math with money” — a strength you can teach.
decomposeSpanish: descomponer To break a number into parts that add, subtract, multiply, or divide back to it. 78.5 = 70 + 8.5, and also 157 ÷ 2 — both rebuild the same number.
estimateSpanish: estimar A reasoned answer that is close enough to be useful, without counting every one. 20 cars × about 4 riders ≈ 80 people on the Ferris wheel.
quantitySpanish: cantidad An amount in a problem — a number with a meaning attached, like 540 meters. 540 meters — the number 540 AND what it measures.

How it worksWorked example

These numbers are not on your problems. The steps are. Follow them with your own numbers.

Lesson 1.1 — Math is Mine: Everyone uses math daily. We do it differently, and sharing how we do it makes all of us better at it.

  1. Lesson 1.2 — Math is Exploring and Thinking: When we do math, we make sense of problems, develop a solution plan, check our progress, and try other strategies when we come to dead ends.
  2. Lesson 1.3 — Math is In My World: When we do math, we visualize and represent problems, use tools to show relationships among quantities, and make strategic decisions about which tool fits the problem.

Now you trySame steps, your turn

The steps are the same as the worked example. The numbers are yours. Do the work.

From 1.1: 78.5 = 70 + 8.5.

Answer:

Say it and write itSentence starters

Finish each sentence out loud with a partner. Then use them in your writing.

Word bank doer of mathmath storystrengthdecomposeestimatequantity

Watch outA common mistake

Converting minutes to hours by moving the decimal point — 625 minutes is NOT 6.25 hours. An hour is 60 minutes, so divide by 60: 625 ÷ 60 ≈ 10.42 hours.

Grade 6 Mathematics · Pre-UnitStandard 5.NBT.B.7

Lesson 1.31.1–1.3 Catch-Up

Catch-UpSkill bridge

Mastery check☐ Exceeds☐ Meets target☐ Needs practice
Name Date Period

Learning target I can show I am caught up on Lessons 1.1–1.3 by using each lesson's big idea in mixed practice.

  1. 1Circle the letter of the best answer. Show how you know.

    (Lesson 1.1) About how many people can ride the Ferris wheel at one time if it has 20 cars that each hold about 4 people?

    1. AAbout 5
    2. BAbout 24
    3. CAbout 80
    4. DAbout 400

    Hint How many groups are there, and how big is each group?

    Show your work
  2. 2Circle the letter of the best answer. Show how you know.

    (Lesson 1.1) Which of these is a correct way to decompose 78.5?

    1. A7 + 8.5
    2. B70 + 8.5
    3. C70 + 8.05
    4. D78 + 5

    Hint Add each option and see what you get.

    Show your work
  3. 3Circle the letter of the best answer. Show how you know.

    (Lesson 1.2) Which of these is a correct way to decompose 105.76?

    1. A10 + 5.76
    2. B100 + 5.76
    3. C100 + 5.076
    4. D105 + 7.6

    Hint Add each option and compare to 105.76.

    Show your work
  4. 4Circle the letter of the best answer. Show how you know.

    (Lesson 1.2) Which is another correct decomposition of 105.76?

    1. A106 − 0.34
    2. B110 − 4.24
    3. C110 − 5.24
    4. D110 + 4.24

    Hint Start at 110. How far down is 105.76?

    Show your work
  5. 5Circle the letter of the best answer. Show how you know.

    (Lesson 1.3) One tram ride takes 12.5 minutes. How many minutes do 10 rides take?

    1. A1.25 minutes
    2. B22.5 minutes
    3. C125 minutes
    4. D1,250 minutes

    Hint You need 10 equal groups of 12.5.

    Show your work
How did it go? ☐ 4 · I can teach it☐ 3 · I've got it☐ 2 · I need a hint☐ 1 · I need help