Half-Life Calculations/ Research Nuclear PBL Day 4

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

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

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?

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

Homework Enjoy the afternoon

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

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

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

Radioactive Incident Research Continue researching your radioactive incident

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.