# Tag Archives: Algebra and Functions

## Polar Graphing

After writing yesterday’s post on the connections between polar and Cartesian graphs, I realized that I hadn’t said anything about how easy it is to start from scratch and create a polar graph in Sketchpad, so I decided to write … Continue reading

Posted in Math Software | | 1 Comment

## Cartesian and Polar Graphs

The May 2013 Mathematics Teacher has an excellent article by Jonathan F. Lawes (“Graphing Polar Curves”) on the value of plotting the same function in both polar and rectangular coordinates. Doing so not only helps students understand how polar coordinates … Continue reading

Posted in Math Software | | 2 Comments

Last week was the fourth session of my spring Advanced Secondary Math Methods class at the University of Pennsylvania. Each year I assign a semester project in which groups of three students use lesson-study techniques—on a small scale—to create, test, … Continue reading

Posted in Real-World Math | | 1 Comment

## Understanding Proportional Relationships with the Proximity Data Game

In the Fall as Middle School and Algebra 1 teachers look for activities to develop students’ understandings of proportional relationships, they may turn to measuring scale diagrams or using springs. One of KCP Technologies’ new online Data Games called Proximity … Continue reading

## “Figuring It Out” Is Where the Learning Happens

I often get asked the question when doing webinars, workshops, or professional development training, “is there a quick way to do that” with Sketchpad, TinkerPlots or Fathom? For example, last week we had a webinar on functions, and the question … Continue reading

## How Low Can You Go?

I heard a great radio interview on NPR this week with Tim Storms, who holds the Guinness Book of Records for the lowest note sung by a human. He sang a few low notes for the interview—so low that my … Continue reading

## ICME: The Nature of Students’ Mathematical Thinking

Like other enthusiasts of mathematics, I’m captivated by the way that mathematical ideas can explain things in the physical world around me, and by the way that I can carry out mathematical thought experiments in my mind and then apply … Continue reading

## Functions Come Alive in a Precalculus Classroom

Ken Gordon has written our first in a series of guest blog posts from people working with Key Curriculum products in schools. Ken teaches Precalculus and Calculus in an accelerated program at Sisler High School in Winnipeg, Manitoba, Canada. He has … Continue reading

## Preparing Tomorrow’s Data Scientists Through Data Games

According to a recent Wall Street Journal article, “Big Data’s Problem: Little Talent,” the technology industry faces a major dearth of employees with strong data analysis skills. The article quotes a 2011 study by McKinsey: A significant constraint on realizing … Continue reading