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Using the Longitudinal Study as a Central Teaching Focus.
Peer reviewed Peer reviewed
Demchik, Michael J. – American Biology Teacher, 1999
Argues that treatment of one investigative longitudinal topic from start to finish in a high school biology class can illustrate many major ideas and concepts. Discusses ways to use various longitudinal studies of plant growth with General Biology classes. (WRM)
Descriptors: Biology, Botany, High Schools, Higher Education
Galls Used for Motivation
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Demchik, Michael J. – Science Teacher, 1971
Descriptors: Biology, Botany, Instruction, Laboratory Procedures
Experiencing Experimentation and Project Design.
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Demchik, Michael J. – Science Activities, 2001
Introduces the pea plant experiment targeted to determine the effects of Knop's solution, a solution containing all the necessary minerals, on plant growth. Compares two groups of pea plants, one treated with Knop's solution and one treated with demineralized water. (YDS)
Descriptors: Botany, High Schools, Middle Schools, Plant Growth
From the Little Acorn
Peer reviewed Peer reviewed
Demchik, Michael J. – Science Teacher, 1977
Provides a variety of science activities structured around the germination and growth of oak trees from acorns. (CP)
Descriptors: Botany, Instructional Materials, Laboratory Experiments, Plant Growth
How-to-Do-It: Investigating a Population of Dandelions on a School Lawn.
Peer reviewed Peer reviewed
Demchik, Michael J. – American Biology Teacher, 1989
Reports on an investigation of a population of dandelions on a school lawn. Describes the objectives, rationale, study area, and the results of the study. Includes tables and graphs that show data collected. (RT)
Descriptors: Biology, Botany, Experiential Learning, Graphs