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Word problems with addition and subtraction, Stephanie's group, Clip 8 of 9: Explaining solutions for problems 1, 2 and 3 to the teacher
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Word problems with addition and subtraction, Stephanie's group, Clip 8 of 9: Explaining solutions for problems 1, 2 and 3 to the teacher [video]. Retrieved from https://doi.org/doi:10.7282/T3MG7MFF

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TitleWord problems with addition and subtraction, Stephanie's group, Clip 8 of 9: Explaining solutions for problems 1, 2 and 3 to the teacher
PublisherNew Brunswick, NJ: Robert B. Davis Institute for Learning, 1989-03-21, c1989-03-21
Persistent URLhttps://doi.org/doi:10.7282/T3MG7MFF
DescriptionIn the eighth of nine clips in a first grade classroom, four children: Stephanie, Gerardo, Sean and Aaron, respond to their teacher, Angela Marinaro, when she asks them to explain their solutions to the problems in the set. In this clip the children revisit Problems 1, 2 and 3, modeling each problem with Unifix cubes. Refer to the first three clips of the series for the children's initial solutions to the three problems.
Statement of Problem 1:
David has 14 lego blocks. Paul has 5 lego blocks. How many more lego blocks does David have than Paul?
Statement of Problem 2:
There are 11 men in the room. There are 6 women in the room. How many fewer women are in the room?
Statement of Problem 3:
Jim has 3 tennis balls. Jim has 1 fewer tennis ball than Don. How many tennis balls does Don 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 EthnicityWhite
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-CLIP008
Version 8.5.5
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