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331
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...
332
Transcript
TitleThe infinite number line, Clip 1 of 4: Naming points on the number line
DescriptionResearcher Carolyn Maher began the session in clip 1 by stating that the class was discussing rulers at the end of the prior session. The researcher pointed out that rulers may be constructed...
333
Transcript
TitleBuilding large models to show equivalence, a generalization, Clip 2 of 3: Brian's conjecture
DescriptionIn the second clip, researcher Carolyn Maher asked the students what the model that was next in size would look like. Brian said that it would equal the length of twenty-four white rods. The...
334
Transcript
TitleThe number line and equivalent fractions, Clip 1 of 1: Multiple representations for equivalent fractions
DescriptionIn this clip researcher Carolyn Maher asked Graham what his argument would be for why two fourths could be labeled one half. He replied that one half plus one half would equal a whole and that two...
335
Transcript
TitleThe infinite number line, Clip 2 of 4: Placing integers on the number line
DescriptionIn the second clip researcher Carolyn Maher stated that the class would be studying pieces of the number line. She referred to the homework from the prior session and stated that the class was...
336
Transcript
TitleWord problems with addition and subtraction, Stephanie's group, Clip 5 of 9: Revisiting the first four problems
Date Created1989-03-21
DescriptionIn the fifth of nine clips in a first grade classroom, four children: Stephanie, Gerardo, Sean and Aaron, revisit their solutions to the first four problems of a set of six word problems involving...
337
Transcript
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TitleWord problems with addition and subtraction, Stephanie's group, Clip 6 of 9: Reconsidering problem 5
Date Created1989-03-21
DescriptionIn the sixth of nine clips in a first grade classroom, four children: Stephanie, Gerardo, Sean and Aaron, revisit and reconsider their solution to Problem 5 of a set of 6 word problems involving...
338
Transcript
TitleWord problems with addition and subtraction, Stephanie's group, Clip 1 of 9: Problem 1, how many more legos does David have than John?
Date Created1989-03-21
DescriptionIn the first of nine clips in a first grade classroom, Teacher Angela Marinaro introduces the day's activity and distributes a packet of problems to each child. She asks the students to identify the...
339
Transcript
TitleWord problems with addition and subtraction, Stephanie's group, Clip 3 of 9: Problems 3 and 4, finding the larger number when the smaller number and the difference are given
Date Created1989-03-21
DescriptionIn the third of nine clips in a first grade classroom, four children: Stephanie, Gerardo, Sean and Aaron, are working first on Problem 3 and then on Problem 4 of a set of 6 word problems involving...
340
Transcript
TitleWord problems with addition and subtraction, Stephanie's group, Clip 8 of 9: Explaining solutions for problems 1, 2 and 3 to the teacher
Date Created1989-03-21
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...