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Word problems with addition and subtraction, Stephanie's group, Clip 9 of 9: Reasoning about the solution to problem 4 with the teacher
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Word problems with addition and subtraction, Stephanie's group, Clip 9 of 9: Reasoning about the solution to problem 4 with the teacher [video]. Retrieved from https://doi.org/doi:10.7282/T3GT5K4F

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TitleWord problems with addition and subtraction, Stephanie's group, Clip 9 of 9: Reasoning about the solution to problem 4 with the teacher
PublisherNew Brunswick, NJ: Robert B. Davis Institute for Learning, 1989-03-21, c1989-03-21
Persistent URLhttps://doi.org/doi:10.7282/T3GT5K4F
DescriptionIn the final clip of the series of nine in a first grade classroom, four children: Stephanie, Gerardo, Sean and Aaron, explain their reasoning about problems 4 of a set of 6 problems to their teacher, Angela Marinaro. In this clip the children revisit Problem 4, modeling the problem with Unifix cubes. There is disagreement about whether the answer is 3 or 6. Researcher Alice Alston asks Stephanie to explain her earlier statement about the importance of the word "have" in the problem. Refer to clip 3 of the series for the children's initial reasoning about the problem.
Statement of Problem four:
Dad has 3 chickens. If Grandpa sells 3 chickens, he will have as many as Dad. How many chickens does Grandpa have?
Math ToolUnifix cubes, Colored stones
Math StrandArithmetic
Math ProblemWord problems with addition and subtraction
NCTM Grade RangePreK-2
NCTM Content StandardNumber and operations
NCTM Process StandardProblem solving, Reasoning and proof, Communication, Connections, Representation
Forms of Reasoning, Strategies and HeuristicsDirect reasoning, Guessing and checking
Grade Level1
Student ParticipantsStephanie (student), Sean (student), Gerardo (student), Aaron (student)
MediatorsAlston, Alice S. (Researcher), Marinaro, Angela (Teacher)
CorporateHarding Elementary School (Kenilworth, N.J.)
SettingClassroom
Student GenderMixed
Student EthnicityMixed
Camera ViewsStudent view
RightsThe video is protected by copyright. It is available for reviewing and use within the Video Mosaic Collaborative (VMC) portal. Please contact the Robert B. Davis Institute for Learning (RBDIL) for further information about the use of this video.
Date Captured1989-03-21
Local IdentifierB30-ARTH-WRDP-CLIP009
Version 8.5.5
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