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Trisler, Carmen E. – Science Activities, 1994
Uses models to illustrate the possible "migration route" of the sugar maple in response to predicted global climate change. Curriculum activities for students are provided that specifically address the sugar maple forests of the Great Lakes regions. (ZWH)
Descriptors: Climate Change, Earth Science, Ecology, Global Warming
Peer reviewed Peer reviewed
Tukey, David D. – Journal of the Freshman Year Experience, 1991
Three models for calculating college student retention rates and predicting enrollments are examined: (1) the Cohort Ratio Model; (2) the Longitudinal Persistence Model; and (3) the Markov Process Model. The last is seen as more encompassing, with wider applicability range, and useful in tracking student change in major and movement in and out of…
Descriptors: Academic Persistence, College Freshmen, College Students, Comparative Analysis