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    Quarter 2Week 16WednesdayDay 78 of 180

    Week 16, Wednesday: Practice a mix of two-step problems · Compare how two persuasive texts use reasons

    Day 78 · 3 lessons · 140 min

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    Math

    Students will practice a mix of two-step problems and check answers with an alternate path or by working backward (2.OA.A.1).

    Remember?

    3 quick questions from earlier weeks · about 3 minutes

    1. 16 − 8 = ? Facts to 20
    2. 9 + 6 = ? and 15 − 9 = ? Week 15
    3. Omar has 54 marbles. Omar gets 13 more. How many marbles now? Week 13

    Standards Addressed

    2.OA.A.12.NBT.B.52.NBT.B.9

    Activities

    10 min

    Warm-Up

    Work-backward warm-up: 'I am thinking of a number. I added 10 and then took away 4, and got 21. What was my number?' (15). Then: 'I took away 7 and then added 12 and got 30.' (25). Talk through undoing each step in reverse.

    15 min

    Mini-Lesson

    Model checking. Solve: 'A baker made 60 rolls. She sold 24 in the morning and 18 in the afternoon. How many rolls are left?' Path A: 60 - 24 = 36, 36 - 18 = 18. Path B: 24 + 18 = 42, 60 - 42 = 18. Then check by working backward: 18 + 18 + 24 = 60. Say, 'Two paths that agree, plus a backward check, means we are sure.'

    15 min

    Practice

    Four problems on cards; your child solves each and checks with a second path or backward check: 'Sofia had 50 beads, used 23, then found 14. How many now?' (41); 'Ben has 19 cars and Max has 8 more than Ben. How many cars in all?' (46); 'A shelf had 72 books. 35 were checked out and 16 returned. How many now?' (53); 'Zara picked 26 flowers and 17 more, then gave away 30. How many left?' (13).

    5 min

    Wrap-Up

    Ask, 'Did any check catch a mistake today?' If yes, celebrate the catch. If no, ask which checking method felt most trustworthy.

    Materials Needed

    index cardspaperpencilwhiteboard or large paper

    Related Resources

    Math Worksheets (Weeks 13-16)Math Answer Key (Weeks 13-16)

    English Language Arts

    Students will compare how two persuasive texts use reasons and will use context clues in a second book (RI.2.8, RL.2.9, L.2.4a).

    Remember?

    3 quick questions from earlier weeks · about 3 minutes

    1. Which comes first in ABC order: frog or fish? Week 15
    2. Which word is in the same family as 'cake': make or kick? Week 13
    3. What is the plural of 'box'? Grammar and spelling

    Standards Addressed

    RI.2.8L.2.4aW.2.1+1 more

    Activities

    15 min

    Read-Aloud

    Read 'Click, Clack, Moo: Cows That Type' by Doreen Cronin, with your child reading every 'Click, clack, moo' line. Ask: 'What do the cows want, and what reason do they give Farmer Brown? What do the cows have that makes Farmer Brown listen?'

    Click, Clack, Moo: Cows That Type by Doreen Cronin
    10 min

    Mini-Lesson

    Compare the two books on paper: Alex uses many reasons and promises; the cows use one clear reason (the barn is cold) plus a bargain (no milk until we get blankets). Ask which approach worked faster and why a good persuader also offers something.

    paperpencil
    15 min

    Guided Reading

    Reread the notes the cows and hens leave. Practice context clues on the words 'demand', 'ultimatum', 'neutral party', and 'impatient', using the sentence and Duck's role in the story. Add each solved word to the Context Clue List.

    Click, Clack, Moo: Cows That Type by Doreen Croninpaperpencil
    15 min

    Writing Workshop

    Your child revises their letter to add a bargain like the cows did ('If you let me stay up later, I will also read for twenty minutes'). Then they write the closing: 'Please think about it. Love, ____.'

    writing folderpencil
    10 min

    Phonics: Context Clues

    Cover-and-guess: on a page of 'Click, Clack, Moo', cover one word with a sticky note (try 'furious', 'background', 'typewriter', 'electric'). Your child reads the sentence, guesses a word that fits, uncovers it, and checks whether the meaning matches.

    Click, Clack, Moo: Cows That Type by Doreen Croninsticky notes

    Materials Needed

    I Wanna Iguana by Karen Kaufman OrloffClick, Clack, Moo: Cows That Type by Doreen Croninpaperpencilwriting foldersticky notes

    Related Resources

    ELA Worksheets (Weeks 13-16)ELA Answer Key (Weeks 13-16)

    Science

    Students will test a prototype against the criteria, collect data, and use the results to identify what to improve (K-2-ETS1-3).

    Standards Addressed

    K-2-ETS1-2K-2-ETS1-3

    Activities

    5 min

    Review

    Read the three criteria and the test plan from the Problem Brief. Set up a Test Sheet with a row for each criterion and columns for 'Trial 1', 'Trial 2', 'Trial 3', and 'Pass or Fail'.

    20 min

    Deeper Investigation

    Run the tests three times each: put 8 crayons in the holder (do they all fit?), tilt the table by sliding a book under two legs and count how many crayons escape, and try to fit the holder in the pencil box. Record numbers, not just yes or no ('2 crayons escaped'). If something breaks, that is data too; write it down and use tape to keep going.

    prototype8 crayonshardcover bookpencil boxTest Sheet in Engineering Notebooktapepencil
    5 min

    Data Discussion

    Look at the Pass or Fail column. Ask: 'Which criterion failed most? What one part of the holder caused that?' Write one sentence starting with 'Next time I will change ___ because ___'. Support: offer two possible changes and let your child pick. Stretch: ask them to predict the new number of escaped crayons after the change.

    Materials Needed

    prototype8 crayonshardcover bookpencil boxEngineering Notebooktapepencil

    Related Resources

    Science Worksheets (Weeks 13-16)Science Answer Key (Weeks 13-16)

    Today's Practice

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

    Math practice · Week 16 · Wednesday

    I can check a two-step answer another way.

    Look: A farm had 70 eggs. It sold 26, then 19 more.

    1. Path A: 70 − 26 = 44. 44 − 19 = 25.
    2. Path B: 26 + 19 = 45. 70 − 45 = 25.
    3. Backward check: 25 + 19 + 26 = 70. It works!

    Solve. Then check with a second path or by working backward.

    1. A cart had 65 books. 28 were put away, then 17 more. How many books are on the cart now?
    2. Nadia had 40 beads. She used 16, then found 23. How many beads now?
    3. Jon has 27 cars. Max has 9 more than Jon. How many cars do they have in all?
    4. I think of a number. I add 10, then take away 5. I get 30. What is my number?

    Challenge

    • Did a check catch a mistake today? What was it?
    How did it go? Great Okay Tricky

    ELA practice · Week 16 · Wednesday

    I can compare how two stories use reasons.

    Look: use the clue

    1. Read: The kitten was tiny, small enough to fit in a cup.
    2. The clue: small enough to fit in a cup.
    3. So tiny means very small.

    Think about the cow story you read today.

    1. What do the cows want?
    2. What reason do the cows give?
    3. What bargain do the cows make?
    4. How is the way Alex asks different from the way the cows ask?

    Use the clues to tell what the bold word means.

    1. Mom said, "This is my final offer. Take it or leave it."
    2. The kids pleaded, "Please, please, can we stay?"

    Challenge

    • Add a bargain to your letter: If you ____, I will also ____.
    How did it go? Great Okay Tricky

    Science practice · Week 16 · Wednesday

    I can test my model and write what happened.

    Test each criterion three times. Write numbers, not just yes or no.

    TestTrial 1Trial 2Trial 3Pass or Fail
    1. Which test failed the most?
    2. Why do we test three times?

    Plan a fix.

    1. Next time I will change ____ because ____.

    You need: your crayon holder, 8 crayons, a book, a pencil box

    How did it go? Great Okay Tricky