This course is a tour of technologies that are particularly well-suited for math instruction. The emphasis is on exploring how hardware and software can be used efficiently to support procedural and conceptual understanding of middle and high school math. View the Syllabus (modified 3/2/11).

Note on Semester Grades: Due to some technical problems, grades for the completed course are not available on this website. If you’d like to see your scores and comments in the gradebook, just shoot me an email.

## InstaCalc – a different kind of calculator

What is Instacalc? Instacalc is a really interesting web-based calculator that blends some of the functions of a website like Wolfram Alpha with the "storing" capabilities of graphing calculators and spreadsheets. I think it has the potential to help students understand the meaning of variables in the computer world. Some Features storing numbers as variables…

The typical way of curving grades in school (adding points to everyone's grade) has some serious drawbacks. With those in mind, I've created a little spreadsheet that teachers might consider as an alternative way to curve grades. The Formula The class of curves is given by $$y=100^{1-p}x^{p}$$ The number $p$ determines the bend of the…

## Modeling Carbon Dioxide Data

Problem: The Earth System Research Laboratory, a division of the National Oceanic and Atmospheric Administration (NOAA) has measured the daily levels of carbon dioxide (CO2) in the atmosphere above Mauno Lao, Hawaii since 1959. Thus, the data we’ll look at represents the average (mean) annual recorded levels over an almost 50-year period. What are some…