Radiocarbon dating (usually referred to simply as carbon-14 dating) is a radiometric dating method.
It uses the naturally occurring radioisotope carbon-14 (14C) to estimate the age of carbon-bearing materials up to about 58,000 to 62,000 years old. Carbon-14 has a relatively short half-life of 5,730 years, meaning that the fraction of carbon-14 in a sample is halved over the course of 5,730 years due to radioactive decay to nitrogen-14.
I tell the students that they will now become archaeologists as they play with the Ph ET simulation "Radioactive Dating Game".
I ask the students to divide themselves into partners, and request that one partner to get a computer, while the second partner gets the record sheet they will use.
Before Radiocarbon dating was able to be discovered, someone had to find the existence of the C isotope.
In this video I walk you through using the simulation.
This discovery is in contrast to the carbon dating results for the Turin Shroud that was supposed to have wrapped Jesus’ body.
Carbon dating has shown that the cloth was made between 12 AD.
As the students work on the simulation they are visualizing how stability and change in natural or designed systems can be constructed by examining the changes over time (CCC Stability and Change), as well as analyzing and interpreting data (SP4). To close this lesson I ask that students write, on Edmodo, what was the most interesting thing they learned in today's lesson.
The review of this responses allows me to gauge not only how the lesson went, but also how the simulation engage/did not engage the students.