This video is a summary of Jansen's January, 2015, brown bag lecture, "How the Poorest Schools in South Africa Achieve the Highest Results in Science and Mathematics." Jansen looks at the condition of schools in general in South Africa and compares them to some of the poorest in the country, where students are succeeding at above national averages. See the full lecture at this link: https://edpolicy.stanford.edu/events/...