March 14 is Pi Day! If you are looking for an interesting piece of history to give your students both some practice with mathematical reasoning and the opportunity to reflect on a unique intersection of mathematical truth and legislative action, introduce them to the Indiana Pi Bill of 1897.
Now in 2020, over 100 years after this photograph was taken, the United States is once again preparing to undertake its decennial census, mandated by the U.S. Constitution for the purpose of determining how many seats in Congress go to each state.
Environmental case studies such as Donora, Pennsylvania, offer students the opportunity to evaluate the system of federalism in context of a historical event. In addition, this event may stretch students’ understanding of when and why society began to focus on the impact of air pollution on the environment.