Curated OER
13 Ways to Tell Time Backwards
Pupils explore different ways geological time can be measured: comparing the time dimensions for each method, the mechanisms of each method, and the materials used.
Curated OER
How Does Radiation Affect You?
High schoolers identify the use and misuse of radiation. They examine human activities that add to the exposure of radiation. They also discover how it can be useful in saving lives.
Curated OER
The Nucleus
In this atoms worksheet, learners review terms associated with atoms which includes isotopes, transmutation, and radioactive decay. This worksheet has 11 short answer questions.
Curated OER
What Time is It?
Pupils explore time by completing worksheets. In this time-telling instructional activity, students utilize images of clocks and determine what time they read. Pupils answer more clock questions with a Smart Board and complete a clock...
Curated OER
The Pony Express
Fourth graders answer four math questions based on their reading of a short story on the history of the Pony Express.
Curated OER
Science: Breathing in Space
Students determine the amount of air they use during rest and activity. They conduct experiments to calculate the number of breaths needed to empty a jug of water by exhaling through a tube into the container. Then, they figure how much...
Curated OER
City Bound
Fifth graders identify the reasons for people migrating to cities after the Civil War. Using population data, they discover why populations in cities rose while rural populations fell during 1860 to 1900. They discuss the impact a...
Curated OER
Emerging Viruses
Learners study the characteristics of living things and explore the characteristics of viruses including their structure, function, and reproductive cycles. They also explore the impact of viruses on human health by discussing common...
Curated OER
I Had To Tell This Story
Tenth graders analyze the video "Berga: Soldiers of Another War." In this World History lesson, 10th graders read a quote and discuss the meaning of the quote. Students read and answer questions based on a video
Curated OER
Anne Frank: Critical Thinking
Students examine the experience of Anne Frank during the Holocaust. Using the text, they discover how propaganda was used to impact the lives of young people in Germany. They answer discussion questions as a class and relate her...
Curated OER
Examining the African American Role in New Haven History: Pride in the Past? Hope for the Future
Fifth graders examine the role of African-Americans in New Haven, Connecticut. Using two maps, they compare and contrast the differences in the town from the past to today. In groups, they use the internet to research the contributions...
Physics Aviary
Physics Aviary: Practice Problems: Half Life From Graph
Determine the half-life of an isotope based on the graph of the amount of the isotope left as a function of time.
Physics Aviary
Physics Aviary: Practice Problems: Half Life From Data
Determine the half-life of an isotope based on the activity data of the isotope as a function of time.
Physics Aviary
Physics Aviary: Practice Problems: Decay Constant and Half Life From Table
Determine the decay constant and half-life of an isotope based on the activity data of the isotope as a function of time.
CK-12 Foundation
Ck 12: Radioactive Half Life
[Free Registration/Login may be required to access all resource tools.] Explains radioactive half-life and radioactive dating, and demonstrates how to solve problems with each.
Utah Education Network
Uen: Radioactive Review
This lesson consists of half-life problems for the students to work out.
Department of Defense
Do Dea: Ap Calculus: Radioactivity and Half Life [Pdf]
Apply the Law of Exponential Change to solve a "real-world" science problem. Formulas and examples are provided. Great review for the AP Calculus test!
Illustrative Mathematics
Illustrative Mathematics: F Bf 1,000 Is Half of 2,000
This task is about an online mathematics organization that is trying, over a four-year period, to generate 2,000 math problems that cover all grades. This real-life modeling task could serve as a summative exercise that draws on many...
Texas Instruments
Texas Instruments: Growth and Decay Formulas
In this question set, students use exponential growth and decay functions to solve problems about compound interest, population growth, investments, and half-life. Solutions and explanations are provided for these problems.
Purple Math
Purplemath: Logarithmic Word Problems
Logarithmic word problems generally involve evaluating a given logarithmic equation at a given point, and solving for a given variable; they're pretty straightforward. This resource contains worked examples to demonstrate the reasoning...
PBS
Idaho Ptv: Science Trek: Salmon
An excellent and comprehensive resource on salmon. Includes three videos: a half-hour show, a video short, and a short video where an expert answers children's questions. The facts section covers every topic you might think of, including...
Cool Math
Coolmath: Radioactive Decay 2
This Algebra Cruncher generates an endless number of practice problems for radioactive decay -- with hints and solutions! Find the half-life.
University of Saskatchewan (Canada)
University of Saskatchewan: Modeling Exponential Decay Using Logarithms
Radioactive decay is a real-life example of exponential decay. This site solves an example problem by using the exponential decay equation.