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231
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...
232
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...
233
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...
234
Transcript
Analytic icon 1 Analytic found
TitleRevisiting construction of large models to compare fractions, Clip 4 of 5: Alan reasons about the third model he constructed
DescriptionIn the fourth of five clips from this classroom session, the researcher, Amy Martino, returned to Alan and questioned him about the third model that he had built for finding the difference between one...
235
Transcript
TitleRevisiting construction of large models to compare fractions, Clip 5 of 5: Finding flaws with the reconstructed big model for comparing two thirds and three fourths
DescriptionIn the fifth of five clips from this classroom session, a visiting researcher asked David, Erik, and Meredith about the large model on the floor, which reflected their attempt to reconstruct the model...
236
Transcript
Student Work
Analytic icon 1 Analytic found
TitleContinuing to explore fraction comparisons, Clip 5 of 7: Michael and Brian compare two third and three fourths
DescriptionIn the fifth clip Michael and Brian extended their model using the orange and red train to show thirds and twelfths in addition to fourths. They showed that the difference between two thirds and three...
237
Transcript
TitleWord problems with addition and subtraction, Jeff's group, Clip 3 of 3: Problems 4, 5 and 6, finding the resulting amount from one number and the difference
Date Created1989-03-21
DescriptionIn the last of three clips in a first grade classroom, Jeff, Milin and Jamie begin by reading problem 4. Jeff, without referring to the stones or cubes, immediately states that Grandpa would have six...
238
Transcript
TitleWord problems with addition and subtraction, Jeff's group, Clip 1 of 3: Introduction and problem 1, how many more legos does David have than John?
Date Created1989-03-21
DescriptionIn the first of three clips in a first grade classroom, teacher Angela Marinaro introduces the day's activity and distributes a packet of problems to each child. She first asks the students to...
239
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...
240
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...