The cell topic was taught to 9th-grade students in three modes of instruction: (a) students "hands-on," who constructed three-dimensional cell organelles and macromolecules during the learning process; (b) teacher demonstration of the three-dimensional model of the cell structures; and (c) teaching the cell topic with the regular…

In this paper a conceptual model of instruction "the six mirrors of the classroom" used as a frame for teaching a learning topic, the microorganisms are depicted. The paper consists of four sections: (a) the six mirrors of the classroom model (SMC); (b) the SMC as implemented in the expository and cooperative modes of instruction in classrooms and…

Compares an individualized audiotutorial (IAT) approach to teaching biology to ninth-grade students with the more commonly employed frontal classroom-laboratory (FCL) method. Indicates the IAT method was effective in increasing achievement and motivation in Israeli kibbutzim junior high school science students. (MP)

The management problems of the implementation process of an Individualized Audio-Tutorial (IAT) learning unit in ninth grade biology in Israel are discussed. The sequence of the learning activities in relation to four problems which were raised during the implementation process are presented: (1) administrative problems at the school level; (2)…

Presents samples of educational material adapted for laboratory use on the subject of the pH scale, dilution skills, and their relevance to biology. The experiments were developed for use in both ninth-grade heterogeneous and tracked classes in biology. Students were assessed for academic achievement in relation to their operational reasoning…

Purposes of this study were to (1) develop an instrument requiring several classification activities; (2) investigate the correlation between classification ability and intelligence scores of junior high school students (N=365); and (3) determine if classification ability differs with age and gender. Findings included a significant correlation…

This investigation of the impact of an Individualized Audio-Tutorial (IAT) biology learning unit upon students in five ninth grade classrooms in an urban junior high school in Israel focused on the students' perceptions of their classroom learning environment, and their attitudes toward IAT and toward science and understanding the process of…

This study investigated the effects on the performance of different age group students of: (1) method of task presentation; (2) format of test questionnaire; and (3) the numerical content of the tasks. The sample consisted of 556 students from grades 7, 9 and 12. The tasks, used for assessing reasoning skills, were taken from the Video-Taped Group…