PBL Pathways

Content Area

College Algebra

Time Frame

4 Weeks with Mini Lectures


March 21, 2012


point-slope form, line, slope, data, linear, rate

Project Title

College Costs 2


David Graser, Yavapai College, Prescott, AZ (David_Graser@yc.edu)


This project originated from the College Costs project. In that project, students modeled costs at educational institutions to determine when costs will double. This goal allowed me to use a unique dataset available from the College Board. This dataset of college costs across the US is updated each year. In this project, students model costs in different states with linear functions. The goal is to use the functions to determine how much is saved in that state by attending a community college for two years and the a four-year college for another two years versus attending a four-year college for all four years.

Project Content

Project Letter: DOC | PDF
Project Data: EXCEL | PDF

Scaffolding Resources

Technology Assignment - Make a Scatter Plot of College Costs ( DOC | PDF ): This assignment is designed to get the students graphing their data points in Excel.

Technology Assignment - Find a Linear Function for College Costs ( DOC | PDF ): In this assignment, students find linear functions for the two datasets they were assigned. They add the lines to the scatter plots created in the technology assignment above.

Technology Assignment - Paste Equations and Graphs ( DOC | PDF ): In this assignment, students paste the graphs they have created as well as corresponding equations into a Word document.




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