More than Magnifiers

Grades 6—8

Written by Cary I. Sneider and Alan Gould

When a student builds optical instruments with her own hands, she's well on her way to understanding how lenses work to enlarge, capture, reel in, and project the world around us.

In this ingenious unit, students use two lenses in different ways to create magnifiers, simple cameras, telescopes, and slide projectors. They learn that lenses have certain measurable properties, which in turn determine the lens best suited for each specific purpose.

This guide brings into practical focus important understandings related to physics, optics, and light, and makes a great connection to the GEMS guides Color Analyzers and Microscopic Explorations.

Time: Four 30- to 50-minute sessions.

A set of lenses necessary for the activities outlined in this teacher's guide must be purchased separately. The set is available through Carolina Biological Supply Company. To order call 1-800-334-5551 extension 6252.

Comment on this GEMS unit.

Order online

Ordering information

Literature Connections

ISBN: Grade Level Format Price



4 Activities,
68 pages


Lawrence Hall of Science    © 2004 UC Regents. All rights reserved.    Contact GEMS    Updated June 20, 2020