Week 17, Wednesday: Write an even number as the sum of two equal addends · Compare and contrast the most important points two

Day 83 · 3 lessons · 140 min

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Math

Students will write an even number as the sum of two equal addends (for example 14 = 7 + 7) and explain why odd numbers cannot be written that way (2.OA.C.3).

Done

Remember?

3 quick questions from earlier weeks · about 3 minutes

12 − 5 = ? Facts to 20
There are 63 people on a bus. 24 leave, then 15 more come. How many people now? Week 16
There are 47 apples. 36 are given away. How many are left? Week 14

7
54
11 apples

Standards Addressed

2.OA.C.3 2.OA.B.2

Activities

10 min

Warm-Up

Chant the doubles ladder from Week 15 (1+1 up to 10+10). Ask, 'Are all the answers even or odd?' Let your child check three of them on the chart. Point out: 'Doubles always make even numbers.'

15 min

Mini-Lesson

Take 14 beans and split them into two equal rows of 7: write 14 = 7 + 7. Do 18 = 9 + 9 and 20 = 10 + 10. Then try 11: two rows of 5 with one left over, so 11 cannot be a double. Write 11 = 5 + 5 + 1. Say, 'Even numbers are doubles. Odd numbers are a double plus one.'

15 min

Practice

For each of 6, 10, 12, 16, 8, and 4, your child builds two equal rows of beans and writes the equal-addend equation. Then for 7, 13, 9, and 17 they write 'double plus one' equations (7 = 3 + 3 + 1). Finish with a quick sort: cut 10 number cards from 1 to 20 and place each under 'double' or 'double plus one.'

5 min

Wrap-Up

Ask, 'If I tell you a number is 8 + 8, do you need to count to know it is even?' Listen for 'no, two equal groups always means even.'

Materials Needed

dried beansindex cardspaperpencil

Related Resources

Math Worksheets (Weeks 17-20)Math Answer Key (Weeks 17-20)

English Language Arts

Students will compare and contrast the most important points two texts make on the same topic and read a poem for a recording (RI.2.9, RL.2.4, SL.2.5).

Done

Remember?

3 quick questions from earlier weeks · about 3 minutes

Read: 'The soup was scalding, so I waited for it to cool.' What does 'scalding' mean? Week 16
What two words make 'we'll'? Week 14
What is the past tense of 'run'? Grammar and spelling

Standards Addressed

RI.2.9 RL.2.4 SL.2.5 +1 more

Activities

15 min

Read-Aloud

Read 'Owl Moon' by Jane Yolen as the second text of the week: a story, not a fact book, about the same animal. Ask: 'What does this story tell us about owls that the fact books also said? What does it tell us that the fact books left out (how it feels to go owling)?'

Owl Moon by Jane Yolen

10 min

Mini-Lesson

Compare the two nonfiction books directly: both say owls hunt at night and have silent wings; Gibbons spends more pages on the kinds of owls, Marsh spends more on baby owls. Write two Both sentences and one Different sentence on the chart. Support: you say the point, your child says which column. Stretch: they add a point from Owl Moon that matches.

Owls by Gail GibbonsNational Geographic Readers: Owls by Laura Marshpaperpencil

15 min

Guided Reading

Your child chooses a page of 'Owl Moon' to record on Friday and reads it aloud three times with you, marking pauses and quiet words the way they did with poems in Week 13. Point out how the author's short lines slow the reader down.

Owl Moon by Jane Yolenpaperpencil

15 min

Writing Workshop

Your child finishes the Owl Fact Report with a closing sentence and then writes one sentence to introduce their recording: 'This is ____ reading facts about owls and a page from Owl Moon.' They practice reading the report and the intro together.

writing folderpencil

10 min

Phonics: Suffixes

Teach -er (more) and -est (most). Write and read: taller, tallest, faster, fastest, softer, softest, louder, loudest, quieter, quietest. Your child lines up three family members by height and says the sentence with the right suffix ('Dad is the tallest').

index cardsmarker

Materials Needed

Owls by Gail GibbonsNational Geographic Readers: Owls by Laura MarshOwl Moon by Jane Yolenpaperpencilwriting folderindex cardsmarker

Related Resources

ELA Worksheets (Weeks 17-20)ELA Answer Key (Weeks 17-20)

Science

Students will test two designs under the same conditions and compare their strengths and weaknesses using data (K-2-ETS1-3).

Done

This week's reading: Two Ways to Cross a River

Standards Addressed

K-2-ETS1-3

Activities

5 min

Review

Reread the fair-test line. Make a Comparison Table with two columns (A and B) and rows for each criterion plus 'held up after a drop from 6 inches' as a new toughness test.

20 min

Deeper Investigation

Run every test on A, then the same test on B, three trials each, writing numbers in the table: crayons that fit, crayons that escaped on the tilt, fits in the pencil box, and pieces that came loose after a 6-inch drop. Keep the same book, the same 8 crayons, and the same table for both. Circle the better number in each row.

Design ADesign B8 crayonshardcover bookpencil boxrulerEngineering Notebookpencil

5 min

Data Discussion

Count the circles in each column. Ask: 'Which design won more rows? Is there a row where the loser was clearly better? Could we take the best part of each?' Write the answer as 'A is better at ___, B is better at ___.'

Materials Needed

Design ADesign B8 crayonshardcover bookpencil boxrulerEngineering Notebookpencil

Related Resources

Science Worksheets (Weeks 17-20)Science Answer Key (Weeks 17-20)

Today's Practice

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

Math practice · Week 17 · Wednesday

I can write an even number as two equal addends.

Look: 10 and 5

10 makes two equal rows of 5, so 10 = 5 + 5. It is even.
5 makes two rows of 2 with 1 left over.
So 5 = 2 + 2 + 1. It is a double plus one, so it is odd.

Draw two equal rows of dots. Write the doubles fact.

12 = ____ + ____
16 = ____ + ____
6 = ____ + ____

Write each odd number as a double plus one.

15 = ____ + ____ + 1
19 = ____ + ____ + 1
3 = ____ + ____ + 1

Challenge

Can 13 be written as two equal addends? Why or why not?

How did it go? Great Okay Tricky

ELA practice · Week 17 · Wednesday

I can compare important points in two texts and use -er and -est.

Look: tall, taller, tallest

Add -er to compare two: A dog is taller than a cat.
Add -est to compare three or more: The horse is the tallest of the three.

Two Books About Snowy Owls

Book 1 says: Snowy owls live in cold places in the far north. They have white feathers. In summer the sun barely sets there, so snowy owls hunt in the daytime. Book 2 says: Snowy owls have white feathers that help them hide in the snow. Thick feathers even cover their feet. They eat small animals called lemmings.

Use the two books above.

What point do both books make?
Write one point only Book 1 makes.
Write one point only Book 2 makes.

-er compares two. -est compares three or more. Fill in the word.

A mouse is small. A bug is ____ than a mouse. (small)
Of the three snakes, the green one is the ____. (long)
Night is ____ than day. (dark)
January was the ____ month of the year. (cold)

Challenge

Write one sentence that starts with 'Both books say'.

How did it go? Great Okay Tricky

Science practice · Week 17 · Wednesday

I can test two designs the same way and compare the results.

Run each test on A, then on B. Tests: crayons that fit, crayons that escaped on the tilt, fits in the pencil box, pieces loose after a 6-inch drop. Circle the better result in each row.

Test	Design A	Design B

How many trials did you do for each test?

Look at your circles.

Which design won more rows?
A is better at ____. B is better at ____.
What did you keep the same in both tests?

You need: Design A and Design B, 8 crayons, a book to tilt, a ruler for the 6-inch drop

How did it go? Great Okay Tricky