1. A computerized teaching system for providing an in-class assessment for evaluating one or more students to determine whether the one or more students are learning STEM principles being taught by a teacher in a class, the system comprising: a communications network; at least one teacher computer; and at least one student computer; wherein each of the at least one teacher computer and the at least one student computer includes an input device and a touch sensitive screen for receiving handwritten input via the input device; wherein the at least one student computer is operably connected to the at least one teacher computer via the communications network; wherein the at least one teacher computer includes a computer-readable storage medium containing program instructions for implementing a teacher administered assessment application comprising one or more program instructions for performing the steps of: receiving at least one question description handwritten by the teacher in math notation on the screen of the at least one teacher computer; storing the at least one question description; receiving at least one correct answer corresponding to the at least one question description, the at least one correct answer being handwritten by the teacher in math notation on the screen of the at least one teacher computer; storing the at least one correct answer; receiving at least one student response from the at least one student computer via the communications network, the at least one student response being input by the student by handwriting the at least one student response in math notation on the screen of the at least one student computer; reading and interpreting the at least one student response; comparing the at least one student response to the at least one correct answer corresponding to the at least one question description; and if the at least one student response includes a plurality of student responses, determining and displaying the number of student responses of the plurality of student responses which are correct on the screen of the at least one teacher computer.