Subitizing Missing Addend Learning Activities

Engage students in subitizing activities to develop number sense. Determine missing addends with cards totaling 2, 3, 4, and 5 by reasoning through simple additions and subtractions. Enhance critical thinking and number fluency.

• Subitizing
• Missing Addend
• Number Sense
• Learning Activities
• Mathematics

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Uploaded on Sep 21, 2024 | 0 Views

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Presentation Transcript

1. Subitizing C3 (0-5) Missing Addend Missing Subtrahend Missing Minuend Subitizing Level Key Messages and Student response expectations I have two cards with a total of 4 and THIS is one of the cards. What is the other card? 1 How do you know? That is 3 and 1 more makes 4. Critical Learning Phases (KR)/Learning Tractories (C&S)/Standards (CCSS-M)/ Key Learnings (VF or citation) Composer to 4 then 5 (C&S) Find Change +/- with subitizing to 5 (VF adapted from C&S) Find Change +/- with subitizing to 10 (VF adapted from C&S) Changes a number to another number by adding a group (KR) Introduce hidden addend or missing subtrahend or minuend If I have this many but only want 6 how many do I need to take away? Keep the 5 and one from the 4 and take away 3. That leaves 6. Vary language: I want to get to 8 and I only have this card what other card to I need?

2. I have two cards that total 2 What is the value of the missing card?

5. I have two cards that total 3 What is the value of the missing card?

8. I have two cards that total 5 What is the value of the missing card?

11. I have two cards that total 1 What is the value of the missing card?

15. I have two cards that total 5 What is the value of the missing card?

19. I have two cards that total 4 What is the value of the missing card?

23. I have two cards that total 5 What is the value of the missing card?

27. I have two cards that total 3 What is the value of the missing card?

31. I have two cards that total 1 What is the value of the missing card?

35. I want to get to 2 and I only have this card

37. What other card do I need?

39. I want to get to 3 and I only have this card

41. What other card do I need?

43. I want to get to 5 and I only have this card

45. What other card do I need?

47. I want to get to 1 and I only have this card

49. What other card do I need?

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