(#19) Electricity
This book begins with task cards that investigate the nature of like and unlike charges, establishing the reason why current flows through wire. Students then improvise bulb and battery holders, and build a variety of different switches. They'll configure them in parallel and series arrangements, using Ohm's law to predict how the current will flow. Your class will construct all manner of wonderful inventions: galvanometers, variable resistors, fuses, electroscopes, wet cells, storage cells, ammeters and more. They'll even split water and recombine the gases in a safe mini-explosion.
(#19) ELECTRICITY is part of our Self-Directing Task Card Series. It is an 88 page soft-bound book organized into three main parts:
INTRODUCTION
* A TOPS Model for Effective Science Teaching * Getting Ready * Gathering
Materials * Sequencing Task Cards * Long Range Objectives * Review / Test
Questions
TEACHING NOTES (36 lessons)
* Transferring Electrons * Like / Unlike Charges * Circuit Puzzles *
Conductor or Insulator? * Redistributing Charge * Polarization * Dancing
Circles * Build a Bulb Holder * Build a Cell Holder * Build a Switch *
Ohm's Law (1) * Ohm's Law (2) * In Series * In Parallel * Series or
Parallel? * Double-Throw Switch * Two-Way Switches * Switching Maze *
Build a Galvanometer * Test Your Galvanometer * Which Path? * Variable
Resistor * Adding Resistances * Tiny Fuses * Electroscope (1) *
Electroscope (2) * Electrolysis (1) * Electrolysis (2) * Electrolysis (3)
* Build a Wet Cell * Build a Storage Cell * Charge a Capacitor * Ammeter
(1) * Ammeter (2) * Generators and Motors * Internal Resistance
REPRODUCIBLE LINE MASTERS
* 36 Open-Ended Task Cards * Lettered Millimeter Scales * Graph Paper
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(#19) ELECTRICITY requires few specialty items other than bare and insulated copper wire, flashlight bulbs, test tubes, lead fishing sinkers, 0.1 farad capacitors, 0.5 watt 100 ohm resistors, 5% hydrochloric acid and ceramic magnets. You'll need at least 1 magnet per lab group which can be purchase direct from TOPS (see below). Gather these and other simple materials, photocopy the 36 task cards, and you're ready to explore TOPS Learning Systems hands-on.
GRADE RANGE: 8-12
ORIGINS: written by Ron Marson / illustrated by Peg Marson / copyrighted
in 1990
by TOPS Learning Systems / ISBN 0-941008-89-4
ORDERING: Please print a copy of our order form, which lists all our titles. Use this form (or scratch paper) to track your ordering preferences as you browse our website.
#19 Electricity @ $16.00
#105 ceramic magnets @
$0.40 each
