#### Project Title

Death

#### Author

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

#### Abstract

Projects involving Newton's Law of Cooling are fairly common. This project allows the student to calculate an estimate of a time of death based on the temperature of the dead body. The full project allows the student to estimate the time of death using a rule of thumb and Newton's Law of Cooling. The goal is for the students to compare and contrast the estimates. Each student has a different temperature at which the body is found based on the number of letters in their name or a similar identifying aspect.

#### Project Content

#### Scaffolding Resources

**Technology Assignment**: DOC | PDF

Video: Graphing a Function on a TI-83

Video: Graphing a Function Using Excel

Video: Changing a Graph in Excel

Video: Adding Axes Titles To Your Excel Graph

Video: Adding Chart Titles To Your Excel Graph

**Handout** - Worked Out Example on Piecewise Linear Function: PDF

#### Notes

This project can be broken down into a rule of thumb project (piecewise linear functions) or a Newton's Law of Cooling project (exponential functions, solving exponential equations).