# Browse

## You are looking at 1 - 10 of 23 items for :

• Problem Solving
• Ninth
• Twelfth
• Connections
• All content
Clear All
Restricted access

## Authenticity of Mathematical Modeling

The choice and context of authentic problems—such as designing a staircase or a soda can—illustrate the modeling process in several stages.

Restricted access

## Using Covariation Reasoning to Support Mathematical Modeling

Table representations of functions allow students to compare rows as well as values in the same row.

Restricted access

## Activities for Students: Connecting Spatial Reasoning Ideas in Mathematics and Chemistry

Stereochemistry and three-dimensional analysis constitute significant parts of this student activity.

Restricted access

## Lotto Prize.1//Lotto Prize.2

Students analyze items from the media to answer mathematical questions related to the article. This month features two news clips on a lottery winner; the mathematics involved includes probability and combinatorics and some locus problems.

Restricted access

## Effective Instruction: A Mathematics Coach's Perspective

When it comes to student achievement, teachers and instruction matter most.

Restricted access

## Rate Problems: Thinking across the Curriculum

In a new approach, rate problems—the bane of students—can connect to higher-level concepts.

Restricted access

## Delving Deeper: Close Encounters with Stirling Numbers of the Second Kind

Two seemingly unrelated problems—one posed to a class of eighth graders, the other posed to a class of high school juniors—uncover a connection through Stirling numbers of the second kind.

Restricted access

## Mathematical Lens: A Road for Every Wheel

Can you imagine riding a tricycle with square wheels? Can you imagine that this tricycle would give you as smooth a ride as a traditional tricycle? A New York Times article (Chang 2011) described a tricycle that had square wheels but that could be ridden “smoothly around a circular path ridged like a flower's petals.” It then explained that the ridged surface on which the tricycle rode undulated such that “the tricycle's axles—and the rider—remain in the same height as they move.”

Restricted access

## Power Indices and U.S. Presidential Elections

The 2000 presidential election provides an ideal backdrop for introducing the electoral voting system, weighted voting, and the Banzhaf and Shapley-Shubik Power Indices.

Restricted access

## Finding Skewed Lattice Rectangles

Many mathematics instructors attempt to insert guided exploration into their courses. However, exploration tasks frequently come across to students as contrived, pertinent only to the most recently covered section of the textbook. In addition, students usually assume that the teacher already knows the answers to these explorations.