Relative age dating lesson plan
This group is dedicated to providing information about the scientific method as it concerns the idea of evolution in the Creation/Evolution debate. The site provides background information about stratigraphic principles and relative time, biostratigraphy (using fossils for relative dating), and radiometric dating. The THEMIS Image Set Gallery will link you directly to a visual gallery of the THEMIS Image set used in correlation with the Mars Image Analysis lesson.Your MSIP coordinator will discuss this image set during your project orientation session.This lesson introduces absolute dating and a few ways in which scientists accomplish it.The majority of the lesson focuses on radiometric dating, including an activity where students date their own "rocks and fossils".Basic understanding of how radiometric dating works is useful. This lesson is highly simplified, and the powerpoint describes everything the student will need to know for the activity.
Radiometric Dating and the Geologic Time Scale, The Talk Origins Archive. Provides brief overview of (1) relative dating and stratigraphic methods, (2) absolute dating and radiometric dating, including a table with parent to daughter isotopes and half lives of those isotopes commonly used in radiometric dating, (3) paleomagnetics and (4) geologic time. Includes tables of common radioactive parent isotopes and their stable daughter products, and half lives of common radioactive isotopes. Once all groups finish, each group records their info on the class decay table (on the board) and we calculate the averages of the class. Isotope Concepts: Students should begin to see the pattern that each time they dump out their M&Ms, about half become stable.Once this info is calculated, students create a graph comparing the class average of parent isotopes to the number of half-lives. Students will be able to explain what a half-life of a rock is. Students will have a more in-depth understanding of what radioactive decay is. Students will understand how scientists use half-lives to date the age of rocks. Students then should be able to see the connection of the M&Ms and radioactive elements in rocks, and how scientists can determine the age of rocks by looking at the amount of radioactive material in the rock.Included below is a Power Point Presentation guiding the first few exploratory phases of the Mars Image Analysis lesson.Educators and MSIP team leaders are welcome to download and edit this document to fit their classroom style and speaker notes have been included to aide the facilitator during the lesson.