Climate Justice, Life Expectancy, and Gender Disparities in Intermediate Algebra
Tatiana Mihaylova, Bellevue Community College
After an introduction to climate justice and life expectancy, students complete a two-part project. For the first part of the project, students use life expectancy data and plots using the Cartesian coordinate system to make conclusions about the impact of climate change on health and longevity and to explore gender differences. For the second part of the project, students continue to practice math skills, and also practice math communication and build their math literacy, by engaging civically through conversation about the first part of their project, as well as how they can take action to support gender equity through family planning and education for women and girls as a way to address climate change.

Modeling Atmospheric CO2 Data
John B. VanLeer, Cascadia Community College
In this activity, students will use actual CO2 data from the Mauna Loa Observatory in Hawaii to create their own "Keeling Curve"; conduct an analysis of the data; and, attempt to match it to a mathematical function. They will then use the function to predict increases in CO2, both historical and future.

Sally Salivates Seashells by the Seashore- Ocean Acidification and the Effect on Sea Shells
Rus Higley, Highline Community College, and Vanessa Hunt, Central Washington University
In this lesson we review "Acids and Bases" taught in a previous lesson and, through a scientific method, will look at the impact of an acid on different types of shells. Students will reinforce previous learning of scientific principles including acids/basis and will develop a real experiment using the scientific method.

Sustainability and Changing Rates of Change
Christopher Coughenour, The Evergreen State College
To understand sustainability, students must understand rates of change. This activity includes a primer on basic rates concepts and an exercise that motivates critical thinking about rates of change and sustainability with an analysis of historical petroleum production rates data from the United States and the world.