Ccss mathematics Assessment Task



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Children on the Bunk Bed

Grade Level: 1


Mathematics Domain and Cluster:

Domain: Operations and Algebraic Thinking

Cluster: Represent and solve problems involving addition and subtraction.


Common Core standard(s) being assessed (if the task is intended to assess only one part of the standard, underline that part of the standard):
1.OA.1: Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.


Student Materials:

  1. Assessment Task Handout: Children on the Bunk Bed?

  2. Pencil

  3. Math Manipulatives:

    1. Counters

    2. Numeral cards 5 – 12




Teacher Materials:


Directions (for teacher to administer assessment task):

  1. Prepare assessment task handout: Children on the Bunk Bed?

  2. Gather materials for task


    1. Counters

    2. Numeral cards (cards attached – you may copy onto cardstock, cut and laminate

Prompt:

  1. Say: Who has a bunk bed at home?

  2. Say: In today’s problem, it has something to do with a bunk bed and some children.

  3. Say: What do you think the problem might be?

  4. Elicit responses.

  5. Say: Here’s what we will do to begin the problem. Turn over a numeral card and use it to complete this number story.

  6. Read number story. Show an example of how they draw a card and include that number in the number story.

  7. Read task:

    1. Record as many different solutions to the problem as you can using pictures, numbers or words


Correct or Model Answer:

Answer will vary depending on the total number that each child starts with.

Model Answer if a child draws a 12.

A student could show their thinking by creating an organized list of number sentences

Top Bunk Bottom Bunk

12 + 0 = 12

11 + 1 = 12

10 + 2 = 12

9 + 3 = 12

8 + 4 = 12

7 + 5 = 12

6 + 6 = 12

5 + 7 = 12

4 + 8 = 12

3 + 9 = 12

2 + 10 = 12

1 + 11 = 12

0 + 12 = 12





Scoring Guide/Rubric (a score should be awarded for each criterion below)

Criteria (CCSS code)

0 points

1 Point

2 Point

Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions. (1.OA.1)

Student may or may not be able to determine unknown amount in problem, even with assistance.

Student able to determine unknown amount in problem, with minor inaccuracies.

Student able to determine unknown amount with accuracy.

Uses objects, drawings, and equations with a symbol for the unknown number to represent the problem.

(1.OA.1)


Student may not be able to show their thinking using objects, drawings and equation with a symbol for the unknown number.

Student may be able to represent thinking by using objects, or drawings, and may or may not be able to show equation with a symbol for the unknown number.


Student able to represent thinking by using objects, drawings and equation with a symbol for the unknown number.
Teacher Note: You may also use this particular problem to assess Mathematical Practice #7 (Look for and Make Use of Structure) and #8 (Look for and express regularity in repeated reasoning). Do the students notice a pattern when doing this problem? After finding a couple of answers to this problem, did they use that information and generate other solutions?

Name Date


C


hildren on the Bunk Bed

Solve this problem.


Children sat on a bunk bed. Some

sat on the top bunk and some sat on the bottom bunk.



How many sat on the top bunk? How many sat on the bottom bunk?

Record as many different solutions to the problem as you can, using pictures, numbers or words.




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