Describes hands-on science areas that focus on trees. A project on leaf pigmentation involves putting crushed leaves in a test tube with solvent acetone to dissolve pigment. In another project, students learn taxonomy by sorting and classifying leaves based on observable characteristics. Includes a language arts connection. (PVD)

Describes a program that puts students through a 10-week summer internship at a non-profit organization and provides them with experiences in career choices in the biological sciences. Explains three parts of the student training and evaluates the program. (Contains 32 references.) (YDS)

A second semester biochemistry laboratory has been implemented as an independent projects course at California State University, Sacramento since 1999. To incorporate aspects of carbohydrate biochemistry, or glycobiology, into our curriculum, projects in lectin isolation and purification were undertaken over the course of two semesters. Through…

This paper reports on a simple hands-on laboratory procedure for high school students in studying both radiation damage and DNA repair systems in bacteria. The sensitivity to ultra-violet (UV) radiation of both "Escherichia coli" and "Serratia marcescens" is tested by radiating them for varying time periods. Two growth temperatures are used in…

This study examined relationships between conceptual understanding, self-efficacy, and outcome expectancy beliefs as preservice teachers learned science in a constructivist-oriented methods class. Participants included 49 preservice elementary teachers. Analysis revealed that participants increased in self-efficacy, outcome expectancy, and…

Hands-on explorations can be extended through interactions with informational texts, enhancing both science learning and literacy development. In this article, the author describes a primary-grade science activity that begins with students examining pine cones and sharing their experiences and observations with peers. The students then generate…

In this article the authors discuss some basic research on the inquiry abilities of elementary students and draw implications for curriculum policy and teacher professional development. In their research, they asked students to make investigations and compared the abilities of students who have had hands-on inquiry science curricula with those of…

Classical physics has a long history of using demonstrations and experiments to develop ideas in introductory courses. The purpose of this exploration is to examine the effectiveness of a desk-top activity for helping students develop abstract reasoning. In the pilot exploration, students in three laboratory sections of a single physics course…

A phenomenological approach was used to investigate the longitudinal recollections of participants of an out-of-school science program. The experience was a field trip to the Shenandoah National Park (USA) conducted in the fall of 2004. The science topic was geologic history and features related to the Shenandoah Valley. Two major themes relating…

Economic pressures on universities and the emergence of new technologies have spurred the creation of new systems for delivering engineering laboratories in education, in particular simulations and remote-access laboratory systems. Advocates of simulation argue that physical labs needlessly consume university space and students' time. However,…

Studies of protein function increasingly use multifaceted approaches that span disciplines including recombinant DNA technology, cell biology, and analytical biochemistry. These studies rely on sophisticated equipment and methodologies including confocal fluorescence microscopy, mass spectrometry, and X-ray crystallography that are beyond the…

This study focused on differences between teacher-centred and learner-centred experiments in soil ecology. After a pilot study, we selected three experiments simple enough to be carried out by pupils even with little experience in self-determined learning and hands-on practice. The sample comprised 123 fifth and sixth graders from a middle school…

Many educators and policy makers argue that science literacy and numeracy are vital skills for successfully participating in the economy of this century. But how do educators increase the levels of scientific literacy, let alone make science a subject for all students, when the subject matter itself has been keeping students away? In this article,…

Developing scientific literacy drove the teaching and learning experiences provided to pre-service primary education teachers. Interactive whiteboard (IWB) pedagogy was used to engage and motivate these students' to explore science's role in making sense of our world and to understand key scientific concepts. Active science learning connected to…

Students in elementary classrooms are not receiving science instruction that is engaging and challenging. The review of the literature indicates that the way that the information is presented has more of an impact on the students than simply whether they comprehend the information. Studies show that hands-on science instruction allows success…