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Postiglione, Ralph | 3 |
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Postiglione, Ralph – American Biology Teacher, 1976
Suggests that the anatomy of a green pea be studied as the culminating laboratory activity of a botany unit in a biology course. (LS)
Descriptors: Biology, Botany, Instruction, Laboratory Experiments

Postiglione, Ralph – Science Activities, 1977
Describes activity relating to the study of trees. (SL)
Descriptors: Biological Sciences, Botany, Earth Science, Plant Science

Postiglione, Ralph – American Biology Teacher, 1974
Descriptors: Botany, Field Experience Programs, Instructional Materials, Plant Growth