Community of Practice: Let's Talk About OER (Open Educational Resources*) We will chat about the state of OER (Open Educational Resources*) within the Community and within the department. We'll discuss its pros and cons as well as opportunities and barriers. …

Some Things We Do and Don't Know About Knots Dr. Jason DeBlois Associate Professor University of Pittsburgh In this talk, “knot” will mean a circle embedded in three-dimensional space. These have been formally studied since the late 19th century. More …