Abstract: Image sequences, video clips, or other sensorily perceptible representations of experiments, are combined with software and hardware for teaching science, critical thinking, and other subjects, to provide a learning process centered on Scientific Method. Experiments are run (or simulated) with various experimental parameters and are recorded on a storage device such as a network server. The reproduced experiment is combined with introductory material, hypotheses, vocabulary words and definitions, and other information to create course modules consisting of one or more segments. Small groups of students run software on separate computers to pick and view experiments, to collect data by interacting with the experiments, to analyze the collected data, and to prove hypotheses. Following each course segment the student groups present their findings to other class members and the teacher facilitates identification and understanding of the principles involved.

Abstract: A flexure measurement device measures the flexure of a flexing body part thereby describing a range of motion of the body part. The flexure measurement device includes a flexible member and a sensor for detecting a change in proportion of the flexible member in response to flexing of the flexible member. In one example, a flexure measurement device measures a change in a length dimension of an elongated flexible member. The length dimension is measured using transmitted signals in which a light source directs a light beam across an array of light sensors. A change in length causes a light source to pivot, thereby changing the light sensors upon which the light beam impinges. The flexure measurement device determines a position in the array of light sensors at which the illumination changes from light to dark to produce a flexure angle measurement.