شبكة المعلومات العربية التربوية

The search aimed to know the effect of Thelin model in the collection of material Biology and retention with the average first-grade students. Researcher intentionally chose the first grade average and the number of respondents (61) students about randomly divided into two groups: the experimental includes 31 students, and the control of (30) students. Rewarded researchers in research between the two sets of variables students (chronological age, and educational attainment of the parents and biology degrees in the first chapter). Researchers prepared lesson plans for the topics scheduled taught to two groups, and also to a promising researchers achievement test author of it (25) paragraph of the type (test of multi-) (understanding of knowledge-based) application and use of the researcher the following statistical methods: (samples t test for two independent samples and the Pearson correlation coefficient and equation Spearman _ Brown and square Kay and difficult equation paragraph and the strength of excellence). The researchers to the result is higher than the experimental group that studied Thelin model (collective investigation) to the control group in biology in the collection, and the superiority of the experimental group to the control group in biology in retention. (Published Abstract)