Chronology Kit Teacher Guide
A comprehensive teacher guide for the absolute dating lesson, including a lesson timeline, scripted prompts, instructional strategies, and an answer key for the Fossil Case Files activity.
Time Travelers Presentation
A visual presentation for the 'Dating the Dead' lesson, including a mental math warm-up, embedded video for radioactive decay examples, core vocabulary definitions, and step-by-step instructions for the Case Files activity.
Fossil Case Files Worksheet
Students receive a worksheet with 'Fossil Case Files'. Each file contains the ratio of Parent-to-Daughter isotopes and the specific half-life of the element used. Students must determine how many half-lives have passed and calculate the absolute age.
Isotope Insider Reference Chart
A comprehensive reference sheet for students featuring isotope half-life durations, a parent-to-daughter ratio conversion table, a visual decay model, and a step-by-step example calculation.