1. Half-Life Calculations/ Research
Nuclear PBL Day 4

2. Common Core Connection
Objectives
Today I will be able to:
Apply knowledge of radioactive principles to researching a radioactive incident
Calculate the time it takes a sample to decay based upon its half-life
Informal assessment – monitor student questions and interactions as they complete the practice/ research
Formal assessment – analyze student responses to the half-life calculations
Common Core Connection
Make sense of problems and persevere in solving them
Reason abstractly and quantitatively
Use technology and digital media strategically and capably

3. Lesson Sequence Evaluate: Warm-Up
Explain/Elaborate: Half-Life Calculations
Elaborate/Explore: Radioactive Incident Research
Evaluate: Exit Ticket

4. Warm- Up
You have 500 grams of Thorium-234 that has a half life of 5 years. If you leave this under your bed for 50 years how much will you have left once you find it?

5. Objective Today I will be able to:
Apply knowledge of radioactive principles to researching a radioactive incident
Calculate the time it takes a sample to decay based upon its half- life

6. Homework
Enjoy the afternoon

7. Agenda Warm-Up Half-Life Calculations Radioactive Incident Research
Exit Ticket

8. Half-Life Calculations
Listen to Mr. Klotz’s Directions and then complete the practice

9. Let’s go over what the poster needs to contain
Incident Poster
Let’s go over what the poster needs to contain

10. Radioactive Incident Research
Continue researching your radioactive incident

11. Exit Ticket
How far along are you in completing the Radioactive Incident Project Worksheet? Write down a percentage as a group and share out with the class.