@article{Rosen_2019, title={Introduction}, volume={113}, url={http://radicalteacher.library.pitt.edu/ojs/radicalteacher/article/view/616}, DOI={10.5195/rt.2019.616}, abstractNote={This is the introduction to the cluster of 47 Teaching Notes, reprinted from past issues of Radical Teacher.}, journal={Radical Teacher}, author={Rosen, Bob}, year={2019}, month={Feb.}, pages={1–3} }