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Tull, Delena – Science Education, 1994
Nine sixth-grade students were asked to identify plants by their common names. In the event that students did not know the correct response, researchers observed a variety of avoidance strategies. The study demonstrated that students at the elementary level should be introduced to the concept of genus before more abstract levels of the botanical…
Descriptors: Concept Formation, Elementary Education, Elementary School Science, Plants (Botany)
Tull, Delena – 1990
An ethnographic study was conducted with the goal of evaluating the botanical concepts of sixth-grade students. One aspect of the study involved examination of the levels of abstraction students use for naming plants. Nine sixth-grade students were interviewed individually. Each was asked to identify the plants seen in a set of 64 slides and…
Descriptors: Abstract Reasoning, Classification, Cognitive Development, Concept Formation
Tull, Delena – 1992
The assertion that there is a social component to children's construction of knowledge about natural phenomena is supported by evidence from an examination of children's classification schemes for plants. An ethnographic study was conducted with nine sixth grade children in central Texas. The children classified plants in the outdoors, in a…
Descriptors: Botany, Class Activities, Classification, Cognitive Structures
Tull, Delena – 1991
An ethnographic study was conducted with the goal of comparing the botanical knowledge of nine sixth grade students with the botanical concepts developed in the elementary textbook series, Science, by Silver Burdett, 1985. The extent to which the child's conceptual framework resembles that of the scientist and the extent to which the textbook…
Descriptors: Academic Achievement, Biology, Cognitive Processes, Concept Formation