Credits

# Math

#### Results: 20 Videos

##### Attend to Precision: Circumference and...

Students select objects in the classroom and measure their circumference and diameter. View Video

##### Attend to Precision: Fraction Strips

Students explore fractions through a story, "fraction strips", and a game with a number cube. View Video

##### Attend to Precision: Fractions and Geoboards

Working with geoboards helps students reach a better mathematical understanding of the concept of "half." View Video

##### Construct Arguments: Fractions and Geoboards

Geoboards help students move from imprecise understandings of "half" to more precise mathematical thinking about the concept. View Video

##### Construct Arguments: Ladybug Counting

Students observe ladybugs and collect data in order to answer quantitative questions. They then compare and discuss answers as a class. View Video

##### Construct Arguments: Pumpkin Seeds

In this lesson, students work in groups to discuss and revise their estimates of how many seeds are in a small pumpkin. View Video

##### Modeling: Domino Math

A teacher uses real dominos to help students explore properties of addition. The dominoes are a concrete representation of the lesson's mathematical ideas. View Video

##### Modeling: Story-Based Centers

A teacher uses one story to create eight story-based centers—places where students explore different aspects of the story, especially as it pertains to mathematical learning. View Video

##### Problem Solving: Bubble Gum Contest

Students work on an activity where they gather data for a bubble gum contest. View Video

##### Problem Solving: Pencil Box Staining

Students work on a project to build and stain wooden pencil boxes. This involves measuring and calculating the surface area of geometric shapes. View Video

##### Reasoning Abstractly and Quantitatively: Beans, Beans...

Students use abstract and quantitative reasoning to estimate how many beans are in a bag. View Video

##### Reasoning Abstractly and Quantitatively: Dice...

Students use abstract and quantitative reasoning to predict dice rolling. View Video

##### Reasoning: Cranberry Estimation

In this estimation lesson, students are asked to predict and record how many scoops of cranberries fit into a jar. View Video

##### Reasoning: What's the Price?

Students use various problem-solving strategies to understand the cost of household items, as well as the partitive model of division. View Video

##### Repeated Reasoning: Products and Sums

In this lesson, students use array structures to reason and conjecture about relationships between sums and products. View Video