Slidedeck/Slideshow/Slides from a presentation titled Quick (and mostly easy) Formative Assessments in the Classroom. Presented at the University of Colorado Boulder (CU Boulder) Graduate Teacher Program (GTP) Fall Intensive workshop, August 22, 2018. Presentation by Environmental Studies PhD graduate student Jeremiah Osborne-Gowey. This talk (and associated slides) provides an introduction to the what, why, and hows of formative assessments in the classroom, including a brief introduction to teaching pedagogy and assessment, reasons to assess teaching and learning, some potential barriers to assessment, a brief rundown on several online formative assessment tools (pros/cons) along with links to examples, and links to additional formative assessment resources.