In this unit students learn about the properties of logarithms.  The task referenced here Exploring_Logarithms_on_wolframalpha.doc  uses the internet to guide students to discover the product rule, the quotient rule, and the power rule.  It was created by Linda Hayes and other project teachers. 

Another task that we explored was a lesson from Illuminations.  It ties together exponential and logarithmic functions.  Click on this link to access the information.http://illuminations.nctm.org/LessonDetail.aspx?id=U137.  There are detailed lesson plans, handouts, videos, a simulated online dive, and an interactive graphing tool.

LogHumor.pdf  - these are some cute puns involving the word "log".  They were found online by Kenneth.