Plant extracts and their components have been reported to have antimicrobial properties against phytopathogens. Although such properties could be harnessed for the development of new pathogen control strategies, there are no standardised methods for their assessment in different extracts. The laboratory exercise presented here involves the use of…

Data collected in many biology laboratory classes are on ratio or interval scales where the size interval between adjacent units on the scale is constant, which is a critical requirement for analysis with parametric statistics such as t-tests or analysis of variance. In other cases, such as ratings of disease or behavior, data are collected on…

Active learning pedagogies offer opportunities to increase student engagement and interest in plants. The Mystery Plant Project is a hands-on, semester-long active learning pedagogy I developed for an introductory, undergraduate Plant Biology course. Students investigate various aspects of their mystery plant species using observations, and…

A laboratory experiment is described in which students synthesize silver nanospheres and transform them into other anisotropic morphologies (decahedral and disks) through a photochemical process. The photochemical transformation was followed by visible spectroscopy, and the resulting morphologies were analyzed using scanning electron microscopy.…

Visual data--or visual sources of information--are a crucial part of helping students understand STEM concepts, improve their reading skills, and engage in science and engineering practices (Finson and Pedersen 2011). Indeed, many science and engineering practices require students to make meaning from visual data. When students are developing and…

This paper highlights the design process and implementation for an "all majors" undergraduate course that allows students a chance to reconnect with the natural world. During this course students explore a wide range of biological and physical science based topics that seek to highlight human intervention and our impacts on the planet.…

To enable turf to be re-established quickly between football matches, grass needs to be grown strongly in a few days. As growth in plants requires light, artificial light is needed to supplement daylight, especially in winter months. This investigation concerns finding the most effective colours of light and hence seeking to test suitable lamps…

Plants and the outdoors may be something of a mystery to a generation of children who are reportedly spending more and more time indoors; this has the potential to inhibit real understanding of many complex biological processes. Taking children outdoors introduces them to a world from which they are becoming increasingly distant. However, a…

Herbivores are important to ecosystems because they transfer energy stored in plant matter to other organisms. However, when herbivores occur in high abundances, they can become pests and harm the plants that form the basis of food webs. Mangroves are saltwater tolerant trees found along most tropical and subtropical shorelines. Because mangroves…

These three biology songs can be used for educational purposes to teach about biochemical concepts. They touch on three different topics: (1) cancer progression and germ cells, (2) gene expression, promoters, and repressors, and (3) electronegativity and the biochemical basis of photosynthesis.

Germinating a seed is presumably the first experiment made by a child in his life. So, it has an important place both in child's scientific experience and understanding. Despite the significance of the experiment, the literature indicates that students possess various misconceptions related to the concepts of seed and seed germination. So, it is…

A set of core ideas in the life sciences revolve around genetics, variation, and inheritance. While the "Next Generation Science Standards" (NGSS; NGSS Lead States 2013) emphasize teaching and learning about these concepts across K-12 grades, it is critical for early learners to begin to develop understanding of them. By the end of fifth…

As young children encounter animal and plant life, they are eager to figure out where plants and animals come from, which plants are edible, and which animals like to eat different plants. Gardening experiences provide ample opportunities to explore how plants grow, what plants need to grow, how to care for plants, and how to harvest the edible…

The purpose of this activity is to demonstrate science teaching and assessing what is learned via using concept maps. Concept mapping is a technique for visually representing the structure of information. Concept mapping allows students to understand the relationships between concepts of science by creating a visual map of the connections. Concept…

To learn with data, students need "data" to explore. This can be deceptive--data-rich experiences typically involve much more than a straightforward science lab. Solving real problems with data means identifying authentic questions that are meaningful to students and provide a foundation for deep inquiry. Such situations often lend…