Though zoos and aquariums have become increasingly focused on conservation education, their menageries of unique and diverse learning opportunities have been underused. This practical "NGSS"-aligned guide to field trips at zoos and aquariums is written specifically for science teachers to support broader utilization of zoos and aquariums…

The Clemmensen reduction is a common example of a reaction demonstrating the deoxygenation of carbonyl groups, which is a topic that has been widely studied in the field of organic chemistry. The use of trimethylchlorosilane, as a substitute for concentrated hydrochloric acid, allows for the reduction of carbonyl groups. The Clemmensen reduction…

Histological assessment of tissues is a critical component of diagnosing diseases and determining disease severity or stage. In order to fully appreciate tissue pathology, an understanding of healthy tissue layers is required. Students traditionally learn this information by memorizing different layers within healthy tissue. This is often a…

Introductory physics labs often focus on a series of common experiments intending to teach the student the measurement side of physics. While these experiments have the potential to be quite instructive, we observed that our students often consider them to be boring and monotonous, which often leads to them being uninstructive. To combat this, we…

There is room for improvement in the amount of active learning that takes place during physiology laboratory exercises. This paper describes a protocol designed to examine the human dive response, with the goal of creating an integrative laboratory experienced focused around improving active learning. The objectives of this laboratory exercise…

This paper examines the process of high school students' planning investigations in the chemistry laboratory across two consecutive academic years in terms of their actions and their progress. The context is a set of five inquiry-based laboratory tasks in which participants (9th and 10th graders, 14-15 and 15-16 years of age) are required to plan…

This article describes the use of project-based instruction in activities and labs intended to develop higher-order thinking skills with high school students and pre-service teachers through the use of soap making.

This article describes how to use protein extraction, quantification, and analysis in the undergraduate teaching laboratory to engage students in inquiry-based, discovery-driven learning. Detailed instructions for obtaining proteins from animal tissues, using BCA assay to quantify the proteins, and data analysis are provided. The experimental…

The author describes a professional development model for high school science teachers based on the framework of inquiry and science standards. The "Learn-Teach-Assess Inquiry" model focuses on guided inquiry labs as the central theme and builds on these labs to reinforce science concepts and abilities to understand and engage in inquiry…

When students understand content deeply, they recognize main concepts and understand the relationships among ideas. But the typical processes students use to study are generally not designed to generate conceptual understandings. Instead, they tend to become passive learners. In this article, the authors present three commonly used classroom…

This qualitative study examines one professional development program and how this experience affects teachers' thoughts about planning and science teaching practices specific to the elements focused on during the program. The program supports 13 American K-12 teachers, selected from across the nation, to spend six weeks with a mentor scientist in…

This report describes a biochemistry laboratory that is completely project-oriented. Upper-level biology and chemistry majors work in teams to purify a protein of their choice. After the student groups have completed literature searches, ordered reagents, and made buffers they continue to learn basic protein purification and biochemical techniques…

The process of diffusion is described as the movement of a substance from an area of high concentration to an area of low concentration. In this article, the authors present a novel way to introduce students to diffusion through the use of an analytical puzzle. This exercise engages students in active learning through a thought provoking exercise…

This study compared the performance of students using the Science Writing Heuristic (SWH) approach and students using a standard or traditional laboratory curriculum on lecture exams and a laboratory practical exam on a specific topic, chemical equilibrium. The SWH helps students do inquiry science laboratory work by structuring the laboratory…

In our Fundamentals of Genetics lab, students perform a wide variety of labs to reinforce and extend the topics covered in lecture. I developed an active-learning lab to augment the lecture topic of mutagenesis. In this lab exercise, students determine if a compound they bring from home is a mutagen. Students are required to read extensive…