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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...

19

2 Analytics found

TitleReviewing rod relationships and the candy bar problem, Clip 5 of 6: Comparing one half and one third, part 1

DescriptionIn the fifth clip from this classroom session, researcher Carolyn Maher asked the class to compare one half and one third and determine which is larger and by how much. The class worked on this...

20

1 Analytic found

TitleNight Session, Pascal’s Identity, Clip 7 of 7: Generating and generalizing Pascal’s Identity

DescriptionThis is the last of seven clips from the night session. The students (Ankur, Jeff, Michael, and Romina) explain to Brian, a late-comer, the meaning of Pascal’s Identity (the addition rule for...

21

1 Analytic found

TitleB74,Combinatorics:Towers,work view,Grade 4,February 7,1992,Raw footage

Date Created1992-02-07

22

4 Analytics found

TitleFraction problems, Sharing and Number Lines, Clip 3 of 5: Comparing unit fractions

DescriptionIn a whole-class discussion in the third of five clips from a single session, students are asked to compare and order 1/2, 1/3, 1/4 and 1/5. David shares his solution that is based on building models...

23

1 Analytic found

TitleReviewing rod relationships and the candy bar problem, Clip 6 of 6: Comparing 1/2 and 1/3, David's balance beam

Date Created1993-09-24

DescriptionAs the students were dispersing after class, David called over researcher Carolyn Maher to share his model. He built a balance beam using one vertical and one horizontal rod, placed two light green...

24

4 Analytics found

TitleB75,Combinatorics,Towers Assessment,WV,StephDana,Grade 3,1992-06-15,Raw

Date Created1992-06-15

25

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...

26

1 Analytic found

TitleDivision of Fractions, Clip 2 of 3: Meredith Writes a Number Sentence

DescriptionMeredith works with her partner, Michael, as they attempt to write a number sentence that describes how many one sixths are in one. After some discussion with Michael and Amy Martino about the correct...

27

1 Analytic found

TitleFraction as number, an introduction, Clip 2 of 8: Students model fraction problems

DescriptionIn the second of eight clips from this session, researcher Carolyn Maher said, “Someone told me that the red rod is half as long as the yellow rod. What do you think?" Danielle responded that the...