Previous research of classroom teaching and learning revealed that students have critical misconceptions about how plants get their food and that these misconceptions remain unchanged despite instruction using activities in the Science Curriculum Improvement Study (SCIIS) unit on producers. Because the experimental sequence described in SCIIS is…

The first U.S. Pharmacopeia, issued in 1820, listed 296 substances of animal, mineral, or vegetable origin in its primary and secondary lists. Of these 130, nearly all of vegetable origin, represented drugs used by American Indians. The number grew at each decennial revision during the 19th century, though some drugs were listed only for a decade.…

Describes construction and use of a simple auxanometer which students can use to accurately measure root growth rates of intact seedlings. Typical time course data are presented for the effect of ethylene and indole acetic acid on pea root growth. (Author/BR)

Of this series of Science Readers, Books I, II, and III are adapted to secondary grades comprising pupils who are in their third and fourth years of school work. Both the reading and the subject matter of Books IV, V, and VI are suitable for grammar grades. The lessons in Books IV, V, and VI contain lessons sufficiently full and definite to enable…

Of this series of Science Readers, Books I, II, and III are adapted to secondary grades comprising pupils who are in their third and fourth years of school work. Both the reading and the subject matter of Books IV, V, and VI are suitable for grammar grades. The lessons in Books IV, V, and VI contain lessons sufficiently full and definite to enable…

The purposes of this study are (1) to determine whether college students who have taken Biological Sciences Curriculum Study (BSCS) High School Biology attain significantly different grades in college biology courses at the University of Missouri than do college students who have taken a non-BSCS high school biology course, and (2) to determine if…

This guide is a collection of "fun" school site activities for sixth graders. Some of the topics covered are: animals, trees, energy and lifestyle, land use and you, energy conservation, and car-pooling. Each section offers both introductory information about the topic as well as questions to ponder such as what, so what, now what, and another way…

Reported is an investigation of the effects on student performance above the knowledge level (Bloom's taxonomy) as influenced by the use of teacher's questioning strategies. Two parallel forms of an elementary science unit on plants and seeds were constructed. In form A, most of the teacher questions were low level in terms of cognitive thinking;…

This unit of instruction deals with the physiological activities of plants. Attention is focused on the principles which underlie the activities of the typical green land plant. Emphasis is placed on biological processes such as photosynthesis, water transport, light responses, mineral nutrition, reproduction, and growth. The prerequisite for…

This is a bibliography of publications related to the natural history found in New York City. Most of the books cited were published in the last 20 years. All of the books listed are available on loan from Brooklyn or New York Public Libraries. In addition, pamphlets, materials in the ERIC system, and organizations are listed. (RH)

Seven-slide series produced by the Diafilm Studio are discussed as they are used as demonstration material for teaching students detailed familiarity with the morphology of the plants in given families and with the variety of their representatives. (Author/ND)

The paleontologist is well suited to develop a course in natural history. The paleontologist's background in both physical and biological sciences lends itself well to an interdisciplinary approach to natural history. A course developed by the author, paleontologist, is described. (RE)