David Andrade critiques Khan Academy (which is these days getting the best publicity money can buy). "Videos, whether shown in class or watched at home should show and explore something that the student can not see in class. Virtual field trips, animations that explain a concept, etc. are effective videos. Videos of lectures are not effective and should not be thought of as effective education reform. Khan Academy is not education reform and it is nothing special or new. It is actually bad pedagogy. Learning needs to be interactive and student centered. Video lectures are neither."