Just how far off is the least squares line? Using a graphing calculator, individuals or pairs create residual plots in order to determine how well a best fit line models data. Three examples walk through the calculator procedure of...

The plot thickens to get a functional understanding. After a short review of plotting points on the coordinate plane, class members learn the difference between functions and relations in the second lesson in a series of nine. They...

Whether or not you are new to using The Odyssey with your classes, this publisher-produced teaching guide deserves a place in your curriculum library. The packet includes background information, chapter by-chapter summaries, study...

Should the standard deviation be used for all distributions? Pupils know that the median is a better description of the center for skewed distributions; therefore, they will need a variability measure about the median for those...

Eliminate the hard work of creating an entire literature unit with this reading guide for the novel Sarah, Plain and Tall. From background information about the author and her motivation for writing the story to...

Planning on using Charles Dickens' A Christmas Carol this year? Then give yourself a gift and download this colorful guide thats packed with goodies. Kids, as well as the ghosts of Christmas past, present, and future are sure to...

Visit the Magic Treehouse and take your class on a trip through time with a reading of the children's book Mummies in the Morning. Using the story to spark an investigation into Egyptian culture, this literature unit engages...

Reading Mary Pope Osborne's Civil War on Sunday? Here's a packet crammed with activities, exercises, reading guides, and project suggestions. A must-have for your curriculum library.

Slopes are not just for skiing. Instructors introduce class members to the concept of slope and teach them how to calculate the slope from a graph or from points. The lesson also includes the discussion of slopes of parallel and...