Exploring Hubble Constant Data in an Introductory Course
  Popular accounts of exciting discoveries often draw students to physics and
astronomy, but at the introductory level it is challenging to connect with
these in a meaningful way. The use of real astronomical data in the classroom
can help bridge this gap and build valuable quantitative and scientific
reasoning skills. This paper presents a strategy for studying Hubble's Law and
the accelerating expansion of the universe using actual data. Along with
understanding the physical concepts, an explicit goal is to develop skills for
analyzing data in terms of a model.
