# Radioactive dating activity high school

The teacher will distribute the lab titled " The Candyville Mall Dilemma " to student groups. Do the Virtual Age Dating Tutorial online , for further reinforcing of half-life concept and how this is applied to dating rocks. When you plot your points, the y-axis lies vertically. What prior knowledge should students have for this lesson? Reading these two paragraphs will explain why the students are asked to find percentages and will relate what they do in the activity to what scientists have to do in the real world. What are the guiding questions for this lesson?

Consider taking your students on a simulated journey back in time in our Time Machine. If they are faced with estimating the age of something that is not living, they would need to use a different radioactive element that the item contains. Feedback to Students Students will receive on-going feedback throughout the lesson concerning their laboratory procedures and graphing abilities in addition to the correct responses from the formative feedback section. After the teacher has modeled the activity for the students, the teacher will circulate around the classroom making sure the students are following the model that was demonstrated by the teacher. Teacher will ask student groups to send one representative to gather the materials or teacher may choose to have materials already set out for students. Students are provided with a formula for finding the percentage of radioactive material remaining so they can focus on the science content and not struggle with the mathematics. How sure are we about these ages? If you have an odd number of students allow the last student to join a group of their choice or assign them to a group based on where you think they will work best. Then students take the class data and create a graph comparing the number of parent isotopes to the number of half-lives. The response answers may vary, but should appear similar to the suggested responses found in the Candyville Mall Dilemma Lab Sheet Key. The teacher may need to refresh the students' knowledge on the following topics which should have already been taught: What should students know and be able to do as a result of this lesson? When you plot your points, the y-axis lies vertically. If the teacher chooses not to bake, they could still use this lab and rely on the picture provided in the lab for the students to date. A lot of the students said because they shook the containers differently This can be done ahead of time by the teacher or can be done by the students. The left column of your data table says Times Emptied on the Table. If the students are able to achieve these responses or similar responses, the teacher can assert that the learning goal has been achieved. After completing the activity, the teacher should review what was done in the lab: Standards 8th Grade Earth Science: When they create their graphs of this information, they use percentages just like you did in Part 2 to express how much radioactive element is left. Students will be able to estimate the age of a fossil using radioactive dating methods. Mixed Ability high level learners with mid-level learners, mid-level learners with low level learners Mixed Gender boys paired with girls Mixed Needs students with special needs paired with those who do not have special needs Pair a student who follows directions well with one who is hard-of-hearing Pair a student who has excellent vision and descriptive skills with one who may be legally blind Pair a student who is still learning English with a student who speaks clearly and has patience. Students graph, post questions, and data table will be looked at. Random Pairing Have 2 sets of numbers in a jar for half of the total students in your class. How could you find out the age of the fossil?

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