Scientists have developed a programmable “molecular robot” — a sub-microscopic molecular machine made of synthetic DNA that moves between track locations separated by 6nm. The robot, a short strand of ...

This review used "meta-analytic," or statistical, techniques to integrate findings from 48 independent evaluations of the effectiveness of programmed instruction in secondary schools. The ...

Thirty two 5th and 6th grade classes participated in a study intended to investigate effects of programmed instruction in disadvantaged students, and their teachers' attitude towards it. The material ...