Reflection: Developing a Conceptual Understanding Assessment: Addition Story Problem - Section 2: Assessment: How Many Snowballs?

 

Today, I will look at how all of the students solved the story problem, specifically looking at the strategy used and if each child could record their thinking with and equation.  At this point in the year, the students should be beyond the counting all strategy.  If a student(s) is still solving a problem that way, I will take time during future Center Times, to work on developing the students ability to count on.  I will do the same thing for the students who are counting on.  Although counting on is developmentally appropriate, I will start modeling more examples where known facts are being used. 

I have included 4 example of work.

The first one is an example of a student counting all.  You can see that she drew the two amounts and then counted them all.  

The second example is of a student counting on.  The student demonstrated this by drawing a picture of a number in her head and then representing the step of counting on from that number.

The third example is of a student using relational ship thinking to answer the fact.  She stated a known fact and then used that fact to solve another.

The fourth students just stated that he knew the fact.  You will need to know your students to know if this is true or not. If students see that you can write this, some will use that as their default wether they know it or not.  In this case I know he does indeed have this fact in his memory.  

  Developing a Conceptual Understanding: Looking at Assessment Pieces
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Assessment: Addition Story Problem

Unit 10: Working with Numbers, Operations, and Story Problems
Lesson 6 of 13

Objective: SWBAT use a known strategy to solve an addition story problem. SWBAT record solutions to problems.

Big Idea: Students will again demonstrate what know strategy they independently use to solve an addition story problem.

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2 teachers like this lesson
Subject(s):
Math, Number Sense and Operations, Operations , 1st Grade, story problems, addition and subtraction strategies
  70 minutes
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