clicker, remotes, whiteboards, keypads, digitals, buzzers, nonvoters, ibt, computers, protractors, pagers, mouses, proctors, captcha, planchette, whiteboard, pretests, robots, touchscreen, bots, overhead projector, mathematical notation, randomizer, needlenose pliers, classroom, keyboards, simulators, ballpoints, visual aids, punchcard, socratic method, inclinometer, texters, operant conditioning, calculators, laptops, touchtone, gizmos, handheld, mnemonics, spirometer, joystick, typewriter keyboard, machines, speedometers, dummies, styli, sensors, quadratic equation, electric typewriter, psat, totalizer, abacuses, textbooks, spoken language, ipods, detectors, autoloading, students, devices, recco, pedometer, beep, shirky, dewey decimal system, differential calculus, simultaneous equations, pythagorean theorem, librarians, gadgets, professors, erasers, turkle, phonics, musical notation, audiometer, stopwatches, lipreading, mcq, undergraduates, kindergartners, projectors, braille, trigonometry, flashcard, learners, tablature, dowsing rod, rubi, skyping, undergrads, voltmeter, voiceprints, blackboards, contraptions, precalculus, instructors, chatters, wands, homophones, texting, stud finder, guts, ability, abrasions, abrasive, accessories, action, adjuncts, admixture, agglomeration, aggregation, agitation, aid, amalgamation, ambushes, amusements, analogy, anchorages, anchors, antidotes, arithmetic