Math.K.OA.A.1

Common core State Standards

  • Math:  Math
  • K:  Kindergarten
  • OA:  Operations & Algebraic Thinking
  • A:  Understand addition, and understand subtraction
  • 1: 
    Represent addition and subtraction with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.


    Drawings need not show details, but should show the mathematics in the problem. (This applies wherever drawings are mentioned in the Standards.)

Download Common Core State Standards (PDF 1.2 MB)

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Math.K.OA.A.3

Common core State Standards

  • Math:  Math
  • K:  Kindergarten
  • OA:  Operations & Algebraic Thinking
  • A:  Understand addition, and understand subtraction
  • 3: 
    Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).


    Drawings need not show details, but should show the mathematics in the problem. (This applies wherever drawings are mentioned in the Standards.)

Download Common Core State Standards (PDF 1.2 MB)

Quick Images: Visualizing Number Combinations
Lesson Objective: Use quick images to identify combinations of 8 (best done in the latter part of K)
Grade K / Math / Composition
Math.K.OA.A.1 | Math.K.OA.A.3

Thought starters

  1. Why is it helpful for students to discuss the mental images they formed?
  2. Ms. Latimer takes multiple student answers to the same question. What effect does this have?
  3. How could this lesson be connected with addition and subtraction?
  4. See also Mathematical Practice Standard 7 in the CCSS?
38 Comments
Great video to demonstrate an important skill for students to have in number sense and addition. Simple and something that any teacher can incorporate into their math program. I am going to use it right now at the beginning of the year to review and practice combinations with my first graders. Discussions and questioning of students is incredibly helpful too! Sharing it with friends! Thanks Stephanie!
Recommended (2)
I think this is a wonderful example of engaging math inquiry. I like the teacher's questions. Thanks for sharing!
Recommended (0)
Thank you! I have been struggling in teaching this to match the Common Core - great video!
Recommended (0)
This was great! Thanks for sharing both the math lesson and your mgmt. skills!
Recommended (0)
We have started practicing this in our classroom. The kids are loving it!
Recommended (1)

Transcripts

  • Quick Images v2 Program Transcript

    My name is Stephanie Latimer and today's lesson is quick images with my kindergartners

    [00:00:15]
    Quick images

    Quick Images v2 Program Transcript

    My name is Stephanie Latimer and today's lesson is quick images with my kindergartners

    [00:00:15]
    Quick images is a very fast activity to show different combinations of numbers and today’s lesson was working on combinations to eight.
    [00:00:24]
    Teacher: Today I have three images for you and I'm going to show them to you really quickly and you’re going to give me a thumb right here if you have an idea how many you saw and then I might ask you how you saw it. Are you ready? Here we go.
    [00:00:43]
    The first time I show one of the images I usually do about three seconds. A lot of my kids will count and I don’t want them to really count, I want them to see groups.

    Teacher: I'm looking for thumbs, JT?

    Student: Eight

    Teacher: Eight. Looking for thumbs, Isaiah

    Student: Eight

    Teacher: Devon

    Student: Eight

    Teacher: Michelle

    Student: Eight

    Teacher: Cameron

    Student: Eight

    Teacher: Dariana

    Student: Eight

    [00:01:07]
    Teacher: OK I'm hearing a lot of eights, I'm going to show you again and it’s okay if you need to revise your answer or if you have the same answer. Are you ready? OK so one more time here we go.

    [00:01:19]
    I was showing images up on the screen from a document camera and that just was too much for them. Magnets on the 10 frame, on a white board, that was easiest for me.

    Teacher: Courtney?

    Student: Eight

    Teacher: Eight. Damon?

    Student: Eight

    Teacher: Maury?

    Student: Seven

    Teacher: Seven. Lora Jean

    Student: Eight

    Teacher: Eight. Michelle?

    Student: Eight

    [00:01:43]
    Teacher: So you saw eight. Can you tell me how you saw eight? I’m going to put it up again so you could see it.

    Student: There's 5 on the top and 30 on the bottom

    [00:01:53]
    Teacher: So you said there’s 5 on the top and 3 on the bottom. Can someone tell me what Michelle just said. Courtney, what did Michelle just say

    Student: There’s 5 on the top and 3 on the bottom

    [00:02:04]
    Teacher: Five on the top and 3 on the bottom. Did anyone else see it that way? Can you do this if you saw 5 on the top and 3 on the bottom. OK, we’re going to do another one, are you ready for it?

    Teacher: You’re right, _____, did you hear him?

    Students: Yes

    [00:02:23]
    Teacher: He said it’s still going to be eight. So now you know how many it is, right.

    Student: Yes ….

    Teacher: How many is it going to be?

    Student: Eight

    Teacher: It’s going to be eight. So I don’t want to know anymore how many there are. I want to know how you see them. Are you ready? OK.

    [00:02:41]
    Teacher: So you’re not telling me how many anymore, you’re telling me how you saw them. K___, can you tell me how you saw them?

    Student: I saw 2 on the bottom and 1 at the top and 4 right there and 1 right there

    [00:03:03]
    Teacher: OK, so you’re seeing 2 and 1, and then 4, and 1. OK. Does someone see it a different way? Does anyone see it a different way? Jailin, can you tell me how you saw it?

    Student: There’s 4 on the bottom and 4 on the top

    [00:03:19]
    Teacher: Oh, so you’re looking at the bottom here, like this, and the top here like this. Can someone tell me what Jailin just said, Lora Jean, what did he say?

    Student: He just said that there’s 4 on the top and 4 on the bottom

    [00:03:32]
    Teacher: Four on the top, 4 on the bottom; anyone else see it that way?

    [00:03:36]
    I think the most valuable piece this year for my kids has been just seeing combinations, that numbers can be in so many different kinds of combinations. So we started with 5 and just seeing OK there’s 5; so 5 and zero. Or looking at it in another combination, well there’s 4 and 1 or 1 and 4, and they’re really fluent with understanding that 4 and 1 can be 5, 1 and 4 can be 5, just that 5 is made up of all of these numbers.

    [00:04:05]
    Teacher: But I think I see some hands of a different way. Isaiah, did you see it a different way?

    Student: I counted by 2s

    [00:04:11]
    Teacher: Oh you counted by 2s. Can you come up and do that for me real quick so we know what you mean?

    Student: Like 2, 4, 6, 8

    [00:04:20]
    Teacher: Well that’s a quick way to count, I like that.

    [00:04:23]
    Something that my class has been working on specifically is just having conversations around math.

    Teacher: Obviously ____ a lot of people doing this, you saw it the same way ….

    [00:04:33]
    So instead of just giving an answer which I told my kids a lot, I don’t want to know your answer, I want to know how you figured it out or how you know.

    Student: There’s 5 on the top and 2 on the bottom and that’s the same way as the first one but there’s 5 right there and there’s one, two, three right there

    [00:04:51]
    Teacher: So you’re saying this is the same as the first image that we looked at? Five and 3, 5 on the top and 3 on the bottom. Oh, I like how you made that connection, nice job.

    [00:05:00]
    To wrap up Quick Images I always just kind of state what the purpose was for the day. So today the purpose was different combinations to 8.

    Teacher: So how many are here again?

    Student: Eight

    [00:05:11]
    Teacher: And we saw 8 today in a lot of different ways. We saw 8 like 5 and 3 and we saw 8, Isaiah counted 2, 4, 6, 8. Lot of 2s. And we saw 8 4 and 4. So we saw 8 lots of different ways today. Nice job.

    [00:05:28]
    Quick Images for us is a good example of what they mean in the common core by subitizing images or being able to sort images of things up to 10, in any kind of configuration.

    ² end of transcript

School Details

Lakeridge Elementary School
7400 South 115th St
Seattle WA 98178
Population: 420

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Stephanie Latimer

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