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18
Transcript
Student Work
TitleEarly algebra, investigating linear functions, series 4 of 7, Guess My Rule problems 4 & 5, Clip 5 of 6: Solving problem 5
Date Created2005-11-03
DescriptionIn the fifth of six clips in Series 4 of Exploring Linear Functions, Ariel, a 7th grade students in an after-school enrichment program, continues his work on Guess my Rule problem 5 with...
19
Transcript
Student Work
TitleBuilding large models to show equivalence, an exploration, Clip 4 of 4: Testing the doubling conjecture
DescriptionIn the fourth clip Erik repeated the explanation of his model to the classroom teacher. His model consisted of a train of three orange and one dark green rod and lined up four blue rods. He lined up...
20
Transcript
Student Work
TitleDiscovering equivalent fractions and introducing fraction notation, Clip 4 of 5: Danielle and Gregory compare one half and two thirds
DescriptionIn the fourth clip, researcher Alice Alston worked with Gregory and Danielle on the task: Which is larger two thirds or one half and by how much? Danielle built two models, one using the dark green...
21
Transcript
Student Work
Analytic icon 1 Analytic found
TitleIntroducing fraction equivalence and an exploration of fraction comparison, Clip 4 of 4: Finding the number name for the difference between one half and one third
Date Created1993
DescriptionDuring this small group activity, the students revisited the task: Which is larger, 1/2 or 1/3, and by how much? Some of the students attempted to solve the task using balance beams, but most reverted...
22
Transcript
Student Work
TitleComparing fractions and evaluating models that represent solutions, Clip 4 of 8: Comparing one half and one third, different number names for the white rod
DescriptionIn clip 4, researcher Carolyn Maher asked the class to determine the number name for the white rod in the first model that had been built, in which the orange and red train was called one. James,...
23
Transcript
Student Work
Analytic icon 1 Analytic found
TitleEarly algebra ideas about binomial expansion, Stephanie's interview six of seven, Clip 10 of 11:
Developing mathematical expressions for generating the number of towers 4-cubes tall selecting from green and blue cubes for exactly 2 green cubes, exactly 3 green cubes, and for 4 green cubes
DescriptionIn the tenth clip in a series of eleven from the sixth of seven interviews, 8th grader Stephanie works with researchers Carolyn Maher and Robert Speiser to synthesize her ideas about how to build the...
24
Transcript
Student Work
Analytic icon 1 Analytic found
TitleFraction as number, an introduction, Clip 4 of 8: Establishing a unit for comparing length of rods
DescriptionIn the fourth of eight clips from this session, researcher Carolyn Maher mentioned that she had heard a student suggest that the red rod be called one if the dark green rod were called one. She asked...
25
Transcript
Student Work
Analytic icon 3 Analytics found
TitleB42, The Gang of Four (Michelle and Milin view), Grade 4, March 10, 1992, raw footage
Date Created2014-04-26
DescriptionThe small group interview with 4 students (Jeff, Michelle, Milin, and Stephanie) lasted about an hour and occurred after the students worked in the classroom on building towers of height five...
26
Transcript
Student Work
Analytic icon 4 Analytics found
TitleB41, The Gang of Four (Jeff and Stephanie view), Grade 4, March 10, 1992, raw footage
Date Created2014-04-26
DescriptionThe small group interview with 4 students (Jeff, Michelle, Milin, and Stephanie) lasted about an hour and occurred after the students worked in the classroom on building towers of height five...
27
Transcript
Student Work
Analytic icon 5 Analytics found
TitleComparing fractions, a whole class debate, Clip 4 of 5: An argument based on a different model
DescriptionIn the fourth clip from this session, Jessica reported that Jackie and Kelly’s argument was different than their original argument in which they had showed the difference between one half and one...