1

1 Analytic found

TitleFraction problems, Sharing and number lines, Clip 2 of 3: That's gorgeous!

DescriptionIn this short clip, James explains to Robert B. Davis his solution to the problem: Which is larger, one fourth or one ninth, and by how much? After some questioning, he explains that the train (i.e.,...

2

TitleB63, Madison Project: Robert B. Davis Introducing Integers With Pebbles in the Bag (Presentation & classroom view), Grade 3-5, 1950s_1960s, Clip

DescriptionIn this 8 minutes whole class discussion about early algebra ideas (specifically with regards to integers), Researcher Robert B. Davis models adding positive and negative integers to a class of...

3

3 Analytics found

TitleComparing fractions and evaluating models that represent solutions, Clip 5 of 8: Small group work, comparing one half and one fourth

DescriptionIn clip 5, researcher Carolyn Maher then asked the students to compare one half and one quarter and determine the difference between the two. The students worked in their groups to build models that...

4

1 Analytic found

TitleComparing fractions and evaluating models that represent solutions, Clip 3 of 8: Sharing Alan's candy bar model

DescriptionIn the third clip Alan presented another model to show the difference between one half and one third. He built a model using one dark green rod, two light green rods, three red rods, and six white...

5

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,...

6

2 Analytics found

TitleEarly algebra ideas involving two variables, Clip 4 of 18: Scientists and the nature of secrets

DescriptionThe fourth of 18 clips from Early Algebra Ideas Involving Two Variables begins the second of two consecutive classroom sessions with the class of 6th grade students. Researcher Robert B. Davis opens...

7

2 Analytics found

TitleEarly algebra ideas involving two variables, Clip 14 of 18: Publishing the "code" for problem 6

DescriptionIn the fourteenth of 18 clips from Early Algebra Ideas Involving Two Variables on the second of two consecutive classroom sessions with the class of 6th grade students, a number of the students...

8

1 Analytic found

TitleEarly algebra ideas involving two variables, Clip 16 of 18: Working on problems 8 and 9

DescriptionIn the sixteenth of 18 clips from Early Algebra Ideas Involving Two Variables on the second of two consecutive classroom sessions with the class of 6th grade students, the students are looking for...

9

1 Analytic found

TitleEarly algebra ideas involving two variables, Clip 13 of 18: Sharing ideas about problem 6

DescriptionIn the thirteenth of 18 clips from Early Algebra Ideas Involving Two Variables on the second of two consecutive classroom sessions with the class of 6th grade students, the researcher, Robert B....

10

TitleEarly algebra ideas involving two variables, Clip 17 of 18: Presenting ideas About problem 8

DescriptionIn the seventeenth of 18 clips from Early Algebra Ideas Involving Two Variables on the second of two consecutive classroom sessions with the class of 6th grade students, several of the students...