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    Quarter 4Week 32ThursdayDay 159 of 180

    Week 32, Thursday: Subtract within 1000 using models · Identify the author's purpose

    Day 159 · 3 lessons · 140 min

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    Math

    Students will subtract within 1000 using models and explain why the strategy works in words (2.NBT.B.7, 2.NBT.B.9).

    Remember?

    3 quick questions from earlier weeks · about 3 minutes

    1. 14 − 6 = ? Facts to 20
    2. Kai has 63 books. Mia has 48. How many more does Kai have? Week 31
    3. How many angles (corners) does a triangle have? Week 30

    Standards Addressed

    2.NBT.B.72.NBT.B.92.NBT.B.8

    Activities

    10 min

    Warm-Up

    Mental math (first taught Week 10): 600 - 100, 450 - 10, 380 + 100, 999 - 10, 210 - 100. Then set out a picnic price list on paper: cups 35 cents, plates 48 cents, napkins 19 cents. Ask which is cheapest and which is most.

    paperpencil
    15 min

    Mini-Lesson

    Review subtraction within 1000 with regrouping (Week 9) and explaining (Week 11). Solve 523 - 268: draw 5 flats 2 rods 3 units, trade 1 rod for 10 units (13 units), take 8; trade 1 flat for 10 rods (11 rods), take 6; take 2 flats. Answer 255. Your child explains each trade in a sentence, such as 'I traded a ten for ten ones because I did not have enough ones.'

    paperpencilbase-ten blocks or drawn squares
    15 min

    Practice

    Apply with story problems: 'The picnic needs 400 cups. We have 236. How many more?' (164). 'A store had 712 plates and sold 385' (327). 'A bag held 650 napkins; 470 were used' (180). Your child solves each with a model or column method and writes one sentence explaining a regroup.

    paperpencil
    5 min

    Wrap-Up

    Ask: 'How is subtracting with regrouping the opposite of adding with regrouping?' File the cup problem in the portfolio, since it connects to the Week 36 picnic.

    folder

    Materials Needed

    paperpencilbase-ten blocks or drawn squaresfolder

    Related Resources

    Math Worksheets (Weeks 29-32)Math Answer Key (Weeks 29-32)

    English Language Arts

    Students will identify the author's purpose (RI.2.6, first taught in Week 10) and explain how the author's reasons support the winner (RI.2.8, first taught in Week 16), then write their own opinion with reasons.

    Remember?

    3 quick questions from earlier weeks · about 3 minutes

    1. What kind of writing teaches facts about a topic? Week 31
    2. Which is a slower way to move: stroll or dash? Week 30
    3. Write the contraction for 'do not'. Grammar and spelling

    Standards Addressed

    RI.2.6RI.2.8L.2.4a+2 more

    Activities

    15 min

    Shared Reading

    Reread the checklist and fight pages of Who Would Win? Lion vs. Tiger. Say: 'In Week 10 we asked why an author writes: to teach, to persuade, or to entertain. Jerry Pallotta does two of these at once. Which two?' Then ask the Week 16 question: 'What reasons does the author give for who wins?'

    Who Would Win? Lion vs. Tiger by Jerry Pallotta
    10 min

    Mini-Lesson

    Draw a table with two legs. Write the author's point on the top ('The tiger would win') and one reason on each leg, copied from the checklist. Say: 'A point without reasons is a table without legs. It falls over.'

    papermarker
    15 min

    Guided Reading

    Your child looks back through the book to find a third reason, adds a third leg to the table, and then reads the checklist page aloud with a sports-announcer voice for fun and fluency.

    Who Would Win? Lion vs. Tiger by Jerry Pallotta
    15 min

    Writing Workshop

    Opinion writing review from Weeks 13 and 15. Your child writes 'I think the ____ would win because...' with two reasons from their Big Cat Facts notes, connected with because, also, and another reason. They may agree or disagree with the author, but each reason must come from a book.

    10 min

    Word Study

    Context clue review from Week 16. Read these book sentences with the target word covered and have your child guess it, then uncover and check: 'A lion's mane protects its neck', 'Tigers are solitary and hunt alone', 'Lions live in groups called prides'. Discuss which nearby words gave the clue.

    index cards

    Materials Needed

    Who Would Win? Lion vs. Tiger by Jerry Pallottapapermarkerindex cardswriting notebookpencil

    Related Resources

    ELA Worksheets (Weeks 29-32)ELA Answer Key (Weeks 29-32)

    Social Studies

    Students will compare traditions across cultures and create a culture quilt square showing food, celebration, and language from their own family (D2.Geo.6.K-2, D2.His.2.K-2).

    This week's reading: What Is Culture?

    Standards Addressed

    D2.Geo.6.K-2D2.His.2.K-2

    Activities

    10 min

    Review and Extend

    Reread two pages of Fry Bread and then look at a photo or library book showing a different family celebration, for example Lunar New Year, Diwali, or a Fourth of July picnic. Make a two-column chart labeled Same and Different: both gather family, both share food, but the foods and clothing differ. Ask: 'Why do people in different places have different traditions?' Guide toward climate, history, and what grows nearby, connecting to Week 11 on natural resources.

    15 min

    Project Work

    Cut a 6-inch paper square and divide it into 4 triangles with an X. Your child draws a family food in one, a celebration in another, a word or greeting the family uses in the third, and a game or song in the fourth. Tape the square onto a poster next to a second square your child makes for the family in Fry Bread.

    2 paper squaresrulercrayons or markerstapeposter board or large paper
    5 min

    Share Progress

    Your child presents the two squares to a family member and explains one thing that is the same about the two families and one thing that is different.

    Materials Needed

    Fry Bread by Kevin Noble Maillardlibrary book or photo of another celebration2 paper squaresrulercrayonstapeposter board

    Related Resources

    Social Studies Worksheets (Weeks 29-32)Social Studies Answer Key (Weeks 29-32)

    Today's Practice

    One page for your child for each lesson. Answers are for grown-ups.

    Math practice · Week 32 · Thursday

    I can subtract three-digit numbers and explain my trades.

    Look: 614 − 257

    1. Ones: 4 is less than 7. Trade 1 ten for 10 ones. 14 − 7 = 7.
    2. Tens: 0 is less than 5. Trade 1 hundred for 10 tens. 10 − 5 = 5.
    3. Hundreds: 5 − 2 = 3. The answer is 357.

    Subtract. Draw or use columns. Circle each trade.

    1. 732 − 458 = ____
    2. 905 − 367 = ____
    3. 641 − 215 = ____

    Solve.

    1. The library wants 500 books for its sale. It has 263. How many more does it need?
    2. A farm had 824 apples and sold 579. How many are left?
    3. Pick one problem. Write a sentence about a trade you made.

    Challenge

    • Check 732 − 458 = 274 by adding. 274 + 458 = ____
    How did it go? Great Okay Tricky

    ELA practice · Week 32 · Thursday

    I can tell why an author wrote a book and write my own opinion with reasons.

    Look: A point and its reasons

    1. Point: I think a dog is the best pet.
    2. Reason 1: A dog can learn tricks. Reason 2: A dog will play catch with you.
    3. The reasons hold up the point, like table legs.

    Think about the book you read today.

    1. Why did the author write this book? Circle two.to teachto persuadeto entertain
    2. What is one reason the author gives for who wins?

    Write your opinion. Each reason must come from a book.

    1. I think the ____ would win because ____.
    2. Another reason is ____.
    3. Many owls are nocturnal. They sleep all day and hunt at night. What does nocturnal mean?

    Challenge

    • Which words in the owl sentences helped you know what nocturnal means?
    How did it go? Great Okay Tricky

    Social Studies practice · Week 32 · Thursday

    I can compare traditions and show my own family's culture.

    Compare your family with the family in the story you read. Write what is the same and what is different.

    SameDifferent
    1. Why do people in different places have different traditions?

    Make a quilt square. Draw an X to make 4 triangles.

    1. Draw a family food, a celebration, a word or greeting, and a game or song.
    2. One thing that is the same about both families is ____.

    You need: a 6-inch paper square

    How did it go? Great Okay Tricky