Describes an assay to determine the rate of photoreduction of 2,6-dichlorophenolindophenol (DCPIP). Acquaints students with experimental design and teaches them how to evaluate and communicate their results with the goal of enhancing their scientific literacy by integrating basic chemistry and arithmetic into their practical experience. (JRH)

Describes the use of biographical stories to promote student interest in plant biology. Discusses plant hunters of various time periods, including ancient, middle ages, renaissance, colonial Americas, and 18th and 19th centuries; women plant hunters of the 1800s and early 1900s; and modern plant hunters. Discusses classroom strategies for the…

Reports on a seven-year longitudinal study of pupils' (n=25) understanding of ecological processes with emphasis on how their conceptions of matter influence their understanding. Results indicate that initially students expected the plants cultivated in closed transparent boxes to die but later used a "cycle model" to explain how the…

Describes an activity that reduces the biosphere to a water-filled jar to simulate the relationship between cellular respiration, photosynthesis, and energy. Allows students in high school biology and related courses to explore quantitatively cellular respiration and photosynthesis in almost any laboratory setting. (ASK)

Presents an integrated lesson on planning a garden and planting seeds with a focus on number concepts and Fibonacci numbers. (ASK)

Describes several games from various sources which can help in teaching about photosynthesis, pollution, pollination, plant parts, Earth history time-scale, biodiversity conservation, values, and communication. Requires little equipment and games are easy to organize and effective with various age groups ranging from primary to adult. (Author/YDS)

Suggests activities to elicit and develop children's conceptual understanding of plants. (Author)

Presents a brief overview of allelopathy, or "chemical warfare" among plants. Includes suggestions for school science topics of study and activities. (Contains 11 references.) (Author/WRM)

Presents a science activity focusing on student ideas about plants and builds a terrarium based on students' ideas about the conditions of plant growth and cycling. (YDS)

In the fall of 2002, teachers at the author's school were expressing interest in finding new ways to teach science as inquiry--and she was looking for an interesting plant inquiry for second-grade students. That November, She attended a Journey North workshop at the Tennessee Science Teachers Association convention and had an "a-ha"…

According to the National Science Education Standards (National Research Council 1996), students in the middle school years should progress in studying life science from examining individual organisms to recognizing patterns in ecosystems and developing an understanding about the cellular dimensions of living systems. Students should broaden the…

The use of plants for healing purposes has been prevalent in all cultures throughout history and continues to play a role in medicine today. While herbal medicine has much to offer, adverse effects can result from lack of quality control and standardization, consuming an inadequate dose, using the wrong herb, and reactions with modern drugs. To…

This study involved the development and application of a two-tier diagnostic test measuring students' understanding of flowering plant growth and development. The instrument development procedure had three general steps: defining the content boundaries of the test, collecting information on students' misconceptions, and instrument development.…

This design study tracks the development of student thinking about natural variation as late elementary grade students learned about distribution in the context of modeling plant growth at the population level. The data-modeling approach assisted children in coordinating their understanding of particular cases with an evolving notion of data as an…

For many children across the globe, whether in low or high income nations, growing up in the 21st century will mean living in overcrowded, unsafe and polluted environments which provide limited opportunity for natural play and environmental learning. Yet Agenda 21, the Habitat Agenda and the United Nations Convention on the Rights of the Child…