Presents photosynthesis as a dynamic demonstration requiring student participation. Depicts photosynthesis as sequential and is scripted in two acts. (DDR)

Describes a laboratory activity investigating important concepts in microbiology and ecology in which students design and carry out their own experiments and learn about microorganisms. Points out that all microorganisms are not dangerous and studies the relationship between Methylobacterium and plants. (YDS)

Advocates including plants at several trophic levels when studying food chains. Presents background information on parasitic plants, myco-heterophytes (saprophytes), and carnivorous plants. Contains 20 references. (WRM)

Introduces an elective science course on one of the silent invaders across the nation--noxious weeds. Targets public education as the main goal of the project. (YDS)

In this study the photoinhibition of photosystems (PS) I and II caused by exposure to high intensity light in oat ("Avena sativa," var Prevision) is measured by the emission of chlorophyll fluorescence in intact leaves adapted to darkness. The maximal quantum yield of PS II was lower in plants grown under high light intensity than in plants grown…

As the articles in this issue attest, U-shaped curves in development have stimulated a wide spectrum of research across disparate task domains and age groups and have provoked a variety of ideas about their origins and theoretical significance. In the authors' view, the ubiquity of the general pattern suggests that U-shaped curves can arise from…

Western China is vast, expansive, sparsely populated, and economically underdeveloped, but it plays an important role in economic and social development in China. While the west is a crucial base of power resources, it is also rich in fauna and flora resources and the major habitat for China's many rare wildlife species. Therefore, protecting its…

The term "deep map" is the invention of writer William Least Heat-Moon, whose extended essay "PrairyErth (a deep map)" has given definition to this form. Deep-map writing is marked by its intertextual, interdisciplinary, and multivocal nature. It is also self-consciously cartographic, presenting maps, following maps, and redrawing maps. Deep…

To date, little of the ecological research on biological diversity and ecosystem functioning has been carried out in agricultural systems, despite the fact that agriculture is a major contributor to loss of native habitats and species. However, agricultural research has demonstrated that polycultures of multiple crop species can have higher total…

The grade three curriculum set out by the British Columbia Ministry of Education has four categories for science: Processes of Science, Life Science, Physical Science, and Earth and Space Science. Within each of these categories there are numerous topics to teach. For example, the physical science curriculum requires students to learn about…

Children and teachers may not think in the same way about particular science concepts. Such parallel lines of thought can compound children's confusion and misunderstanding as they learn science at primary school. The situation could be more acute when student teachers are teaching science, because of their limited experience of considering…

This study investigated the contributions of students' reasoning ability and meaningful learning orientation to their understanding of the photosynthesis and respiration in plants concepts. Data were gathered through the use of the Test of Logical Thinking (Tobin & Capie, 1981), the Learning Approach Questionnaire (Cavallo, 1996), and the Two-Tier…

From adding richness and variety to learning, to redesigning a playground, this highly accessible text will provide early years practitioners with a wealth of ideas on how to foster creative play and learning in the outdoor environment with a focus on interacting with the natural world. "Nature and Young Children" contains many simple ideas on the…

Bumble bees are valuable pollinators of native and cultivated flora. Despite our knowledge of bumble bee nest site selection, most efforts to attract bumble bees to artificial domiciles have been met with limited success. Creating and evaluating artificial domiciles provides students an opportunity to investigate a real problem. In this lesson,…

Data sharing among multiple lab sections increases statistical power of data analyses and informs student-generated hypotheses. We describe how to collect, organize, and manage data to support replicate and rolling inquiry models, with three illustrative examples of activities from a population-level biology course for science majors. (Contains 1…