Increasing Engagement

I remember being frustrated last year at about this time with my geometry students' performance on four questions on their circles test. The test was chronologically ordered in the way the material was presented so I was perplexed when they did poorly on the last section before review. It involved circles in the coordinate plane. Below are [...]

By |April 26th, 2017|Geometry|0 Comments

A Tale of Three Classes

Two weeks ago I wrote a post called Equations from Data. In it, my pre-calculus students first were charged with finding a curve of best fit for global iPod sales data from 2006 to the present. Then they were asked to find an equation for the curve of best fit for global iPhone sales. The goal was to show [...]

By |October 16th, 2016|edtech|0 Comments

Rectangular Coordinates

Coordinate Plane The coordinate plane is used to represent ordered pairs of real numbers by points in a plane and determine relationships between those points and the segments, lines or curves that connect them.   The axes form four quadrants. The x values are positive from the origin to the right and are negative from [...]

By |August 16th, 2015|PreCalculus|0 Comments

Families of Graphs

One of the benefits of graphing calculators and graphing software is that it allows you to learn things about functions and equations that would have been tedious to explore via pencil and graph paper. Families of graphs is a concept that starts with a "parent" function or equation and asks you to compare "child" functions [...]

By |June 23rd, 2015|Algebra II, PreCalculus|0 Comments

How is Sports Illustrated Faring?

The release of the 2015 Sports Illustrated swimsuit edition often brings controversy of some sort. This year's inclusion of a plus-size model does not disappoint. Is it an about face that recognizes that women come in all shapes and sizes or an effort to boost revenue for a flailing industry? MPA The Association of Magazine Media publishes [...]

By |February 7th, 2015|Algebra|0 Comments

Ebola 2014 Revisited What Has Changed? In Ebola 2014, we looked at data from the CDC regarding Ebola cases and deaths. The data was plotted in an Excel spreadsheet and on a TI-83+ graphing calculator to determine the curve of best fit. At that time the function that described the data was an exponential growth model. Over time, [...]

By |January 25th, 2015|Graphing Calculator, PreCalculus|0 Comments