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 ...

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 ...

This is a preview. Log in through your library . Journal Information The Mathematics Teacher (MT), an official journal of the National Council of Teachers of Mathematics, is devoted to improving ...