DescriptionIn the third clip from this classroom session, during the whole class discussion, Sarah and Audra presented their solution to the class. Audra explained that they called the red rod one fourth when...
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...
DescriptionAt the start of the first clip, the researcher Carolyn Maher asked the students to solve tasks similar to the ones that they had worked on earlier in the week. She asked Audra to tell her what the...
DescriptionIn the second clip from this classroom session, researcher Carolyn Maher posed a challenge. She asked the students to name the red rod if a train of yellow and light green was called two. The...
DescriptionThe first of 8 clips with second grade students focuses on a classroom session where the children are working in small groups to solve a task involving volume. Researcher Amy Martino asks the...
DescriptionDuring this session, the students begin by working on the following problem: “Stephen has a white shirt, a blue shirt and a yellow shirt. He has a pair of blue jeans and a pair of white jeans. How...
DescriptionIn this clip, researcher Amy Martino asks Dana and Stephanie to work on an extension to the shirts and pants problem: How many outfits can Stephen make if he has an additional pair of black jeans?...
DescriptionDuring this session, the students begin by working on the following problem: “Stephen has a white shirt, a blue shirt and a yellow shirt. He has a pair of blue jeans and a pair of white jeans. How...
DescriptionIn this clip, Jamie begins recording on a large sheet her solution to the Shirts and Pants Problem introduced in the previous clip in this series. As Jamie records her solution, researcher Alice...
DescriptionAt an after-school session in the middle of their junior year, Ankur, Brian, Jeff, Michael, and Romina were introduced to the World Series problem [the problem statement is below]. The students...