To test student understanding teachers may wish to use a short quiz. Teachers may also wish to use a more interactive assessment model.
A more interactive assessment could include having each student invent an isotope.
Students will learn the concept of half-life, be able to identify the half-life of an isotope from a plot of its decay, and understand the potential application of the concept of half-life in the dating of biological and geological artifacts.
Teachers may wish to seek additional background on carbon-14 or half-life before beginning this activity.
Students should name thier isotope, decide its half-life and plot its decay.