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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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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...

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2 Analytics found

TitleEarly algebra ideas involving one variable, Clip 6 of 11: Trying to complete truth sets for equations two through eight

DescriptionIn the sixth of eleven clips from the first day of the Early Algebra Ideas 6th grade class sessions, the researcher, Robert B. Davis, challenges students to try to find more than one value for each of...

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2 Analytics found

TitleEarly algebra ideas involving one variable, Clip 4 of 11: Working on equations two and three

DescriptionIn the fourth of eleven clips from the first day of the Early Algebra Ideas 6th grade class sessions, the students work in small groups to find and record solutions for the first two of a series of...

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2 Analytics found

TitleEarly algebra ideas involving one variable, Clip 3 of 11: Introducing quadratic equations and solving equation one

DescriptionIn the third of eleven clips from the first day of the Early Algebra Ideas 6th grade class sessions, researcher Robert B. Davis builds on the idea about equations with one variable and integers...

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TitleEarly algebra ideas involving one variable, Clip 2 of 11: Introducing integers with pebbles in the bag

DescriptionIn the second of eleven clips from the first day of the Early Algebra Ideas 6th grade class sessions, the researcher, Robert B. Davis, models adding positive and negative integers to a class of 6th...

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TitleEarly algebra ideas involving one variable, Clip 5 of 11: Solving equation four

DescriptionIn the fifth of eleven clips from the first day of the Early Algebra Ideas 6th grade class sessions, the students work together to find the truth set for equation four on the worksheet recorded...

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3 Analytics found

TitleBuilding Towers, Selecting from two colors for Guess My Tower, Clip 5 of 5: Sharing with the Group

Date Created1993-02-26

DescriptionIn this final clip, an exuberant Stephanie presents her understanding of the “doubling rule” to the group of students ( Matt, Michelle I, Michelle R, Milin and Robert) who assembled around a...

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3 Analytics found

TitleBuilding Towers, Selecting from two colors for Guess My Tower, Clip 4 of 5: Stephanie and Matt Rebuild the Argument

Date Created1993-02-26

DescriptionIn clip 4 of 5, fifth grade student Matt shares his understanding of Milin’s inductive argument with Robert and Michelle R. who, up to this point, found twelve, four-tall towers. Stephanie...

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3 Analytics found

TitlePizza problems with four and five toppings, clip 2 of 6: Finding an answer

DescriptionIn the second of 6 clips, the four 11th grade students generate an exhaustive list of pizza options choosing from 4 toppings. They recognize that the 16 choices correspond to the fourth row of...