Christopher Dock High School - Schul Andenken Yearbook (Lansdale, PA)

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Ripple Tank Arrives for Physics Lab Science introduces new worlds and opens students' minds as they investigate the mysteries of microscopes, test tubes, and slide rules, looking for unknown knowl- edge. ln biology, chemistry, and physics, students do experiments in a weekly double lab period. A newly added piece of equipment to the physics' laboratory is the ripple tank. The ripple tank produces water waves. By studying the patterns and interference of water ripples the nature of energy waves can be demonstrated as related to sound and light. Mr. Peachy and Tim Frei compare the world of a microscope and a text book. at i Y 'K Bob Stoltztus and Dan Walter learn to work with the new ripple tank under the supervision of Mr. Reinford. .Mu may Brian Hagey and Paul Alderfer are titrating the last drop of acid be- fore the pink disappears.

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To gain a thorough understanding of a foreign country, it is important to receive an under- standing ofthe country's language. The foreign language program offers Spanish and German. Tapes are used frequently to aid students in lis- tening and speaking. At Christmas students enjoyed singing carols in the languages they were studying. 5+ .3 Dale Yoder and Gerald Heavener hold a mock telephone conversation in Spanish. Mr. Leidig interprets the formula for the area of a cylinder. K1-. ,. P ...L Mr. Reinford leads his class in the singing of German carols. Math is Math y Any Language Mathematics is the language with which God wrote the universe. This statement appeared on the bulletin board of the geometry classroom, where Mr. Leidig taught students to improve their quality of thinking and reasoning. A set of plastic geometric shapes was added to the mathematics department for the study of solid geometry. Cours- es offered by the mathematics department are Al- gebra I and II, Trigonometry, Advanced Math, and General Math. Aaron Kolb is baffled by the sines and the cosines of the times. 23

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nod afternoon, Christopher Dock High School, Eileen Moyer akingf' if-sn!-u-an-I :PX--I ,,,..,, 2 '7'-...... ig 5luuuu T K tl e iss Nolt checks for correct techniques in beginning typists. t ss. Mr. Martin, Miss olt Exact Secre- tarial Perfection. New materials added to typing classes upgrad- ed the teaching effectiveness. Program learn- ing guides were introduced which program individual learning exercises and students can rapidly progress at their own pace. Tapes were used to introduce the keyboard to Typing I students. Typing chairs and Typing I books were added as new equipment. Miss Nolt's recorded voice commands inerrable perfection in typing drills.