We have developed a laboratory project in which students prepare liposomes, expose them to hyperosmotic and hypoosmotic solutions, and follow the resulting shrinking and swelling (respectively) with laser light scattering. Each light intensity transient can be fit to an exponential decline or rise, with the decay constant (k) and the amplitude…

A classroom culture that features clear procedures will produce a safe learning environment for students. By establishing a class with clear procedures and effectively managing the learning environment, an educator can reduce discipline issues (Erdogan, Kursun, Tan Sisman, et al., 2010). A well-managed class will allow maximum instruction to take…

High-impact practices, and other pedagogical advancements, have been successfully used to deepen student engagement with courses over a wide variety of disciplines. Here, we describe the design, implementation, and assessment of a cross-disciplinary, inquiry-based lab course built on the proven success of these deeply engaging principles. This new…

In tabletop games involving dice, it is important to ensure randomness of the dice rolls and to protect other gaming elements from being scattered by rolling dice. One way of ensuring random rolls and protecting gaming elements is to drop dice into a dice-rolling tower ("dice tower"). A dice tower is usually small (20 cm by 20 cm) and…

Orchestrating opportunities for students to engage in scientific talk in the classroom is challenging for most teachers and even more so for novice teaching assistants (TAs) who typically instruct introductory science laboratories at the postsecondary level. This study was designed to understand how TA moves are related to instances of scientific…

This volume investigates the ubiquitous education of everyday life as people contest the normal, settle on a new convention, and deal with the difficulties that arise. By documenting adolescent Dominican girls, young men in Silicon Valley, successful venture capitalists, and others imagining, explaining, and challenging the status quo, this book…

Course-based Undergraduate Research Experiences (CUREs) have been described in a range of educational contexts. Although various learning objectives, termed anticipated learning outcomes (ALOs) in this project, have been proposed, processes for identifying them may not be rigorous or well-documented, which can lead to inappropriate assessment and…

This article explains how the project-based lab (PJB-Lab) trains critical thinking skills, creative thinking skills, communication skills and collaboration skills (4C Skills) and produces two project products from the application of the fluid concept, namely the application of Archimedes' law on submarine projects and the application of…

This high school-level, place-based, inquiry-driven laboratory module familiarises students with techniques used to analyse animal behaviour while facilitating the development of the observational skills highlighted by the Next Generation Science Standards (NGSS). Throughout the module, students observe, quantify, and discuss local invertebrate…

Affective and cognitive outcomes of science teaching in schools may be enhanced by science outreach labs (SOLs). Particularly interesting is whether and how to connect SOL visits to in-school science learning. Recent studies--among others, in this journal--have confirmed SOLs' positive affective effects. However, research remains inconclusive…

Large introductory STEM courses have a reputation as "weed out" classes. These classes and their laboratory components are more often viewed by students as hurdles to overcome than valuable learning experiences relevant to their future careers. This perception especially impacts students who have a lower science identity and…

This paper describes a student laboratory in the Unit Operations Laboratory at the Colorado School of Mines: air separation by pressure swing adsorption. The flexibility of the system enables students to study the production of enriched nitrogen or oxygen streams. Automatic data acquisition permits the study of cycle steps and performance.…

A novel method of measuring the coefficients of kinetic and rolling friction is proposed. The method is simple to implement and reliable. Samples of measurements and calculations are presented.

Gas-phase nitrogen oxides are important in the formation of tropospheric ozone. NO[subscript x] (NO and NO[subscript 2]) as well as tropospheric ozone have been shown to have negative effects on human health. Therefore, accurately measuring NO[subscript x] concentrations in the atmosphere is important. In this laboratory experience, students…

This study aims to design a mechanism with which the density of any solid or liquid can be determined without measuring its mass and volume in order to help students comprehend the concept of density more easily. The "solidensimeter" comprises of two scaled and nested glass containers (graduated cylinder or beaker) and sufficient water.…