A laboratory inquiry into the thermochemical relationships in the reaction between aqueous solutions of NaHCO[subscript 3] and NaOH is described. The enthalpy change for this reaction, delta[subscript r]H, and that for neutralization of strong acid and NaOH(aq), delta[subscript n]H, are determined calorimetrically; the explanation for the…

Continual advances in information and communication technologies (ICT) are revolutionizing virtual education and bringing new tools on the market that provide virtual solutions to a range of problems. Nevertheless, nonvirtual experimentation using computer-aided control system design tools is still fundamental for future engineers. This paper…

Within the last 10 years, new tools for assisting in the teaching and learning of academic skills and content within the context of science have arisen. These new tools include multiple types of computer software and hardware to include (video) games. The purpose of this study was to examine and compare the effect of computer learning games in the…

As part of a campus-wide effort to transform introductory science courses to be more engaging and more accurately convey the excitement of discovery in science, the curriculum of an introductory physical geology lab course was redesigned. What had been a series of ''cookbook'' lab activities was transformed into a sequence of activities based on…

An approach to create an interactive and inexpensive electronic book (eBook) for an undergraduate biochemistry laboratory course is presented. This approach featured the involvement of an undergraduate student in the lead role of designing and developing the eBook using Apple's iBooks Author application. The eBook, entitled "Introduction to…

A guided-inquiry experiment was designed and implemented in an introductory organic chemistry laboratory course. Students were given a mixture of compounds and had to isolate two of the components by designing a viable workup procedure using liquid-liquid separation methods. Students were given the opportunity to apply their knowledge of chemical…

In this paper, we present the design and the results of a comparative study that evaluated the success of a transfer of an online-teaching resource between two universities, one in Germany and one in the USA. The teaching resource is an online physics lab that has been used in the physics education of medical students in Germany since 2003. The…

Understanding chemistry includes the ability to think on three levels: the macroscopic level, the symbolic level, and the level of particles--sub-microscopic level. Pupils have the most difficulty when trying to understand the sub-microscopic level because it is outside their range of experience. A virtual laboratory enables a simultaneous…

Introductory science courses play a critical role in the recruitment and retention of undergraduate science majors. In particular, first-year courses are opportunities to engage students in scientific practices and motivate them to consider scientific careers. We developed an introductory course using a semester-long series of established…

As a result of a dramatic shift over the last 10 years in how educators and administrators are supported in their professional learning, teachers are no longer working in isolation behind closed doors. Instead, professional learning has moved to the school and the classroom, and teachers are encouraged to share their work and their students' work.…

Laboratory activities are an important means of instruction in science; as such, they have been used in chemistry education since the 1880s. Many learning objectives can be achieved through the use of laboratory activities undertaken by chemistry students. In student-centered laboratory activities, students should know how to use an apparatus in…

The laboratory unit demonstrates a project based approach to teaching physical chemistry laboratory where upper-division undergraduates carry out a transient-absorption experiment investigating the kinetics of cis-trans isomerization of N,N-dimethyl-4,4'-azodianiline. Students participate in modification of a standard flash-photolysis spectrometer…

Changes and transformations in organisations are traditionally initiated by the management. This approach does not, however, encourage the agency of all the members in an organisation to engage in cooperative development of the activity. This paper presents an analysis of the development of participants' transformative agency in a Change…

In facilities throughout the United States and abroad, communities of scientists share infrastructure, instrumentation, and equipment to conduct scientific research. In these large facilities--laboratories, accelerators, telescope arrays, and research vessels--scientists are researching key questions that have the potential to make a significant…

For the past five years, the education and outreach effort of the Sanford Underground Research Facility has been supported by a grant from the National Science Foundation (NSF) to plan, develop, prototype, and prioritize the suite of educational outreach activities of the lab. Now known as the Sanford Science Education Center (SSEC), education and…