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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...

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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...

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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...

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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,...

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TitlePUP Math Towers of Hanoi

Date Created1993-10-29

DescriptionThis video comes from The Private Universe Project in Mathematics and includes excerpts from interviews as well as narrative voice-over, interspersed with footage of students engaged with problem...

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TitleEarly algebra ideas involving two variables, Clip 1 of 18: Open sentences that can be made true or false with legal or illegal substitutions

DescriptionThis first of 18 clips focusing on Early Algebra Ideas Involving Two Variables occurred toward the end of the first of two consecutive 6th grade class sessions. Researcher, Robert B. Davis, builds on...

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TitleEarly algebra ideas involving two variables, Clip 3 of 18: Introduction to guess my rule

DescriptionIn the third of 18 clips focusing on Early Algebra Ideas Involving Two Variables, when Researcher Robert Davis asks the students to explain what they understand to be the mathematical task, Milin...

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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...

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TitleEarly algebra ideas involving two variables, Clip 9 of 18: Problem 6 is different?

DescriptionIn the ninth 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 note that the Truth...

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TitleEarly algebra ideas involving two variables, Clip 6 of 18: Work on guess my rule problems 2 through 5

DescriptionIn the sixth 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 work together to find...