JOURNRL OF
Chemical Education: Software Abstract of Special lssue Number 4
Making Polyethylene Polyethylene Polvaervlanitrile
The World of Chemistry: Selected Demonstrations and Animations II Nava Ben-Zvi heorew Jn versly of Jer~salem Departmen! of Sc~enceTeachmg Jerusalem, Israel 91904
The carbon Dioxide Cycle .Acid Rain and Limestone 'Lime Water and Carbon Dioxide Silicates Therrnite Reaction
Lisa Ragsdale The World of chemist^ University of ~ a l ~ l a n dCollege at Park College Park, MD 20742
The videodisc medium obviates concerns that normally accompany demonstrations: safety, availability and disposal of reagents, cost and time of constructing apparatus, and visibility of the presentations.
"The World of Chemistry: Selected Demonstrations and Animations 11" (available April 1993) is the second video laserdisc issue of JCE: Software with a selection of demonstrations and animations taken from the video component of The World of Chemistry telecourse ( I ) . This video series provides a new dimension to the teaching of chemistry by the extensive use of demonstrations, animation, inteiviews, and real-life stories. The video serves as the vehicle to transport the student upon alternative roads-avenues that cannot he explored otherwise in the classroom. The World of Chemistry videodiscs have been designed so that a variety of demonstrations-the macro world of chemistry-are followed by animations t h a t carry the learner to the molecular world. We believe that exposing students to both macro and micro worlds helps them conceptualize more easily and overcome some commonly held misconceptions and improves their ability to move back and forth between the macro and micro worlds. This second World of Chemistrv videodisc com~ilessegments of descriptive &d applied chemistry-with examchemisples from the disciplines of biochemistm . organic .. try, inorganic cllcmistry, and environmental rhernisrry. Most of the demonstrotions are followed by molecular animation. Video segments included are:
Acknowledgment The World of Chemistry received major funding from The AnnenbergICPB Project.
Side A Black Boxes and Models 'Electron Clouds and Energy Levels The A&au Principle The Making of Sodium Chloride 'Nitrogen Triiodide Decomposed Water's Structure Detergent Action ACatalyst on the Surface From an Amino Acid to a Peptide Chain; The Alpha Helix, Hair and Silk The Boat and Dock Model DNA Structure Synthesis of Messenger RNA Protein Synthesis Side B Carhon and Its Bands Making Aspirin Perkin's Experiment C h i d Molecules and Polarized Light
About This lssue John W. Moore and Jon L. Holmes University of Wisconsin-Madison Madison, WI 53706 This special issue contains selected demonstrations and animations from The World of Chemistry, in a format that allows teachers to access the video rapidly. I n the User's Manual each videochapter is numbered and grouped by order and by subject. For each Chapter the following information is provided: a general title, the barcode of the beginning frame, The World of Chemistry original video program from which it is excerpted, key concepts, suggestions on use and "if the students ask"--equations for any reactions uerformed. This information is followed bv the full script ofthe scgmcnt, with key concepts in bold letters. T h e demonstrator is Donald Showaltcr. Professor of Chemistry a t the University of isc cons in Stevens Point and a frequent presenter a t chemical education workshops throughout the United States. HardwardSoftware Requlred "The World of Chemistry: Selected Demonstrations and Animations 11" is a 12-in., donhle-sided, 60-minute, CAVtype videodisc i n NTSC format (it is incompatible with the PAL standard used in many European countries). I t may be operated from any videodisc player using a hand-held remote-control keypad or a barcode reader. To make the video presentation visible to students in a classroom either a large-screen color monitor or a color video projection unit will be needed. The size of the monitor (or the need for a projection unit) depends on the size of the class to which the presentation will he made. Citations 1. "The World of Chemistry: Selectrd Uuormshations and Anhatione I." J . Chsm. Edue.: So,4wm 1992,SP-3. -Ahtract of Special Issue Number 3: The World of ChemisVy: Selgted Demonstrationsandhimations I,'" J Chem. Educ 1992,69, 304.
Volume 70 Number 2 February 1993
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