21
Date Created1990-10-11
DescriptionIn this edited clip, Stephanie and Dana solve the four-tall towers problem selecting from two colors. They produce an answer of sixteen. The next excerpt shows Stephanie and Dana making a claim of...
22
Date Created2014-04-27
DescriptionIn this problem solving session two students, Brandon and Colin, are working to solve the pizza problem when selecting from four toppings [problem statement is below]. Brandon and Colin both organize...
23
Date Created1990-05-30
DescriptionThe sixth of 8 clips with second grade students focuses on Dana, Michael and Stephanie, one of several small groups within a whole-class session working on the lollipop problem. Researcher Amy Martino...
24
Date Created1990-05-30
DescriptionIn the seventh of 8 clips with second grade students, Dana, Michael and Stephanie, one of several small groups within a whole-class session, continue their work on the lollipop problem. (See Clip 6 of...
25
Date Created1990-05-30
DescriptionIn the last of 8 clips of second grade students, Dana, Michael and Stephanie, one of several small groups within a whole-class session, construct solutions for the Shirts and Pants problem. Stephanie...
26
Date Created1990-10-11
DescriptionIn this clip, Jamie and Michael discuss their solutions to the Shirts and Pants Problem introduced in first clip in this series. They compare their individual solutions and find that they match....
27
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...
28
DescriptionIn the fourth clip Michael and Brian worked together to compare one half and three fourths.
Michael built a model of an orange and red train, two dark green rods, and four light green rods. He then...
29
DescriptionIn the second clip, researcher Carolyn Maher asked the students to build a model to show which is bigger, two thirds or one half, and by how much. The students worked with their partners to solve the...
30
DescriptionIn clip seven, researcher Carolyn Maher told the students to use the remaining class time to challenge their partners with problems using the rods. Erik asked Alan, “If a light green was one third,...
