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Our class collection

Count, classify and tell an addition story, then revise after adult feedback.

Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.

1. What you will learn

Make and explain a record of your own small collection.

2. Investigation words

TermWhat it means
ruleThe feature used to place each object.
reviseChange your work after checking it.

3. Your collection task

With an adult, gather six to ten safe objects or paper shapes. Count them once. Sort by shape and label each group. Make a picture graph: one mark per object. Point to a feature that explains each shape name. Sort again by another rule. Check that the whole count stays the same.

Another way: steps

Collect → count → sort → label → check.

4. Tell and show

Choose two groups whose total is within ten. Tell an addition story and act it out with the objects. Show how each number matches a part. An adult may write your spoken explanation without supplying the answers.

5. Adult observation rubric

Score each separately: accurate count, justified shape groups, one-mark-per-object graph, and matching addition story. Use 0 for not yet shown, 1 for partly shown with prompting, and 2 for independently shown and explained. Give one specific suggestion. The child revises and explains the change. Record the observation; the screen questions do not grade this original task.

6. Check a record of two and three.

  1. Compare groups with the whole.

    2 + 3 = 5

    Both parts should rebuild the collection.

  2. Match labels to categories.

    Two in one group; three in the other

    The labels must describe the actual sorting rule.

7. Your labels total six, but you counted five.

  1. Compare the two totals.

    6 and 5 disagree

    Sorting should preserve the whole.

  2. Your turn: work this step out. Its working is at the end of the packet.

    Check each object's place.

8. Guided practice

You sorted five pieces, but your group labels say 3 and 3. What should you check?

Audio transcript: None

9. Guided practice

Match each record to what it describes.

whole collectionone shape categoryanother shape category
All five pieces
Two square pieces
Three triangles

Audio transcript: None

10. Practice

A class tray has 2 square pieces and 1 triangle pieces. Write the group labels.

Squares: s. Triangles: t.

11. Somewhere new

A new collection has two red squares and one blue square. One child sorts by shape; another sorts by color. Can both be right?

Audio transcript: None

12. Lesson test

Lesson test: one question per skill, one attempt each, no hints. Your answers are checked when you submit.

13. Test question

A class tray has 4 square pieces and 4 triangle pieces. Write the group labels.

Squares: s. Triangles: t.

14. What you can do now

What changed when you sorted another way, and what stayed the same? Show your evidence.

Working for the steps left to you

7. Your labels total six, but you counted five., step 2

Count once and revise

A corrected record must match the collection.