(#42) Focus Pocus
The title of this book sounds like magic. Just gather the simple materials, sprinkle with water, and shout "Focus Pocus!" You'll get a canning-ring projector, a washer-lens reducer, a beverage-bottle magnifier and microscope, and a soda-straw superscope. Keep stirring with hand lenses (you can order these from TOPS) and you'll brew up a lens platform that traces the bent path of refracting light rays, and a working mechanical eye. A meter-stick protractor connects these marvelous learning systems to solid math as your students measure angular size, graph visual acuity, and explore the inverse relationship between distance and apparent size.
(#42) FOCUS POCUS is part of our Self-Directing Activity Page Series. It is an 64 page soft-bound book organized into three main parts:
INTRODUCTION
* A TOPS Teaching Model * Getting Ready * Gathering Materials *
Sequencing Activities * Long Range Objectives * Review/Test Questions
TEACHING NOTES (20 lessons)
* Pin Rays * Light Wagon * Lens Platform * Itsy-Bitsy Lenses * Spotlight
* Elevator Up * Variable Lens * Pinhole Projector * Canned Eyeball * Eye
See * Spare Change * Money Math * Near Point * Water Magnifier * It's a
Microscope! * Suspenders * Drawing Pin * In Print * Jabberlooky * Higher
Powers
REPRODUCIBLE LINE MASTERS
* 20 Student Activity Sheets * light wagon * lens platform * vision graph
* money ruler * powers ruler
______________________________
(#42) FOCUS POCUS requires no special lab equipment or unusual supplies other than hand lenses with an 8 cm focal length. These may be purchased direct from TOPS (see below). Just photocopy the 20 activity sheets, gather simple materials (like microscope slides, coins, soda bottles and adding machine tape), and you're ready to explore TOPS Learning Systems hands-on.
GRADE RANGE: 5-10
ORIGINS: written by Ron Marson / illustrated by Peg Marson / copyrighted
in 1996
by TOPS Learning Systems / ISBN 0-941008-42-8
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.
#42 Focus Pocus @ $15.00
#104 hand
lenses (3X) @ $1.25 each
