附註:Includes index.
Preface -- Introduction -- Tools of the trade: masses, making a spring scale, using the spring scale, making a lever, making a pulley -- Things that pivot: the floating hammer, first-class levers, a simple balance, standard but not customary, machine mobiles, the missing dot, second-class levers, more dots, third class levers, cantilevers, deflection, catapults -- Things that turn: toy trucks, windlass, taming the lions, fixed pulleys, movable pulleys, block and tackle, windmills, pulley geoboards, mousetrap cars -- Things that slide: more trucks, levitating the teacher, wisecrackers, cut ups, thread, more threads -- Things that rub: rub-a-dub-dub, easy slider, just warmin' up, slip slidin' away -- Things that work: an uplifting experience, going up?, calculating mechanical advantage -- Things to hang on the wall: a simple bulletin board, a learning center, learning center shape cards -- Things that come at the end: final evaluation -- Things with meaning: glossary.
摘要:Hands on experience activities are demonstrated to give students essential scientific principles associated with machines.
