Climate Literacy
Clean: A Fossil Thermometer
In this activity, students calculate temperatures during a time in the geologic record when rapid warming occurred using a well known method called 'leaf-margin analysis.' Students determine the percentage of the species that have leaves...
TeachEngineering
Teach Engineering: How Much Sugar Is in Bubble Gum?
Most of the flavoring in gum is due to the sugar or other sweetener it contains. As gum is chewed, the sugar dissolves and is swallowed. After a piece of gum loses its flavor, it can be left to dry at room temperature and then the...
Illustrative Mathematics
Illustrative Mathematics: A Ced, a Rei Basketball
In this task, two brothers track how many games they have each won. Young scholars are asked to make calculations based on the percentage of games won. They set up a rational equation (and a rational inequality) in one variable, and then...
Texas Education Agency
Texas Gateway: Chapter 7: How the Unemployment Rate Is Defined and Computed
By the end of this section, you will be able to do the following: Calculate the labor force percentage and the unemployment rate, Explain hidden unemployment and what it means to be in or out of the labor force, and Evaluate the...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Percent Change Increase and Decrease
Get independent practice working with finding percent increase and decrease. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Northern Illinois University
Faculty Development and Instructional Design Center: Punctuation Quiz
A ten question punctuation quiz utilizing comma, colon, semicolon, and a period. If answered incorrectly, students are able to select a different answer. The percentage of accuracy from their first answer is calculated at the top.