Demonstrating the steps of a signal transduction cascade usually involves radioactive materials and thus precludes its use in undergraduate teaching labs. Developing labs that allow the visual demonstration of these steps without the use of radioactivity is important for allowing students hands-on methods of illustrating each step of a signal…

A set of highly atom-economic experiments was developed to highlight the differences between acid- and base-catalyzed ester syntheses and to introduce the principles of atom economy. The hydrochloric acid-catalyzed formation of an ester was compared with the 4-dimethylaminopyradine-catalyzed ester synthesis.

The history of Balloon, which is enjoyed by most populations as ornaments and toys, is explained. The buoyancy of helium filled balloon has also helped many scientist in research work of chemistry.

An experiment to perform a simple initial investigation that illustrates concepts of speciation and equilibrium, using the instrument and chemical resources in the laboratory is presented. The investigation showed that the presence of multiple chemical species in a reaction mixture (phenol red solution) reflects the acid and base conditions…

The solvent-free or solid-state reaction systems like the Baeyer-Villiger rearrangement have become popular in the synthetic organic community and viable option for undergraduate laboratory series to reduce waste and cost and simplify reaction process. The reaction is an efficient method to transform ketones to esters and lactones.

This case study examines the performances of 18 10th-grade students (age 15-16 years) in the process of performing problem-solving tasks in the physics and chemistry laboratory. The study focuses on different types of problems arising in the process of transferring responsibility to students in a context of teacher assistance to autonomous…

Many plant biologists claim that there is a tremendous bias towards the study of animals in science curricula, however, there is even less attention given to topics on fungi. On average, Biology laboratory manuals will have only one fungi exercise, and most of the time, it is mainly descriptive. As we developed this exercise we realized how much…

There are many schools (grades K-12) around the country that offer some sort of science research option for students to pursue. Often this option is a local science fair, where students do smaller projects that are then presented at poster sessions. Many times the top local projects can advance to some type of regional and, possibly, state science…

According to the hypothesis of misperception of feedback, people's poor performance in renewable resource management tasks can be attributed to their general tendency to systematically misperceive the dynamics of bioeconomic systems. The thesis of this article is that dynamic decision performance can be improved by helping individuals develop more…

Microscale chemistry is an approach to conducting chemistry practicals which can help overcome increased concerns about environmental pollution problems as well as rising laboratory costs. It is accomplished by using miniature labware and significantly reduced amounts of chemicals. This paper reports on students' attitudes and motivation towards…

Adding a strong conclusion can alter a cookbook lab into an inquiry lab by challenging the student to defend relevant data and clearly communicate his or her findings. A well-organized scoring guide makes it easier for students to understand what is involved in writing a strong conclusion. Examples of student writing that are accompanied with the…

Purpose: This paper seeks to examine the spatial patterns of student use of machines in each laboratory to whether there are underlying commonalities. Design/methodology/approach: The research was carried out by assessing the user behaviour in 16 computer laboratories at a regional university in Australia. Findings: The study found that computers…

In this article, the author talks about the concept of school library as a place of learning for students. He contends that a school library must be conceived in terms of three aspects. First, it should have a creative school library media specialist to lead the principal through a meaningful vision of what the library could be in terms of…

The purpose of the current article is to examine the impact of laboratory demonstrations and computer visualizations on learning in a third-year fluid mechanics course at Norwegian University of Science and Technology (NTNU). As a first step, on entering the course, students were exposed to a laboratory demonstration focusing on the nature of…

The history of writing to learn college science is tied to the development of laboratory methods. Such student-centered learning was widely hailed in the 1890s as student enrollments increased dramatically and a backlash grew against lecture and recitation methods. However, as the author shows using archival examples from Dartmouth College,…