This article describes the Lissajous generalized figure and the original instrument for its investigation. Two specially prepared electrodynamic loudspeakers--a horizontal and a vertical--cause oscillations in two mirrors. It is possible to precisely control the motion of the mirrors, achieve a high frequency of oscillation and investigate…

Equity Indexed Annuities (EIAs) are controversial financial products because the payoffs to investors are based on formulas that are supposedly too complex for average investors to understand. This brief describes how Monte Carlo simulation can provide insight into the true risk and return of an EIA. This approach can be used as a project…

When high school students are asked what's the best part of science class, many will say it's the field trips. Students enjoy engaging in authentic, community-based science outside the classroom. To capitalize on this, Patrick Willis created the Bird Box Survey Project for his introductory field biology class. The project takes students…

The problem which this paper addresses is the difficulty of knowing students in large diverse classes in pedagogically useful ways. The paper discusses how the phenomenographic methodology can be employed to address this problem. It describes how phenomenographic studies and their results can enable teachers to "know their students" at a…

In this guided inquiry, students investigate advantages and disadvantages of genetic engineering by integrating popular fiction into their study of bioethics. What are the effects of artificially created hybrid creatures on characters in "The Hunger Games" and in our society? What are the effects on and basic rights of the organisms…

Learning-by-teaching is a pedagogical approach grossly underused in the education of engineers at all levels. The existing learning-by-teaching literature across all disciplines was reviewed with the intent of formally presenting this teaching method to engineering educators. The review defines learning-by-teaching, presents theoretical support…

The researchers described in this case study how Service Learning was incorporated within the context of an early childhood program where the teachers used the Project Approach. The Service Learning project was embedded in an investigation about water and was designed to help tsunami victims in Asia. Participants included two teachers and 12…

Of the eight practices of science identified in "A Framework for K-12 Science Education" (NRC 2012), helping students develop and use models has been identified by many as an anchor (Schwarz and Passmore 2012; Windschitl 2012). In instruction, disciplinary core ideas, crosscutting concepts, and scientific practices can be meaningfully…

One of the biggest challenges in the early weeks of the new school year is to keep learning interesting and the students engaged as routines and procedures are established and reinforced. How can a classroom teacher make the routines and procedures engaging and educational, while building a community of learners? The answer is simple... build a…

We describe an investigative laboratory module designed to give college undergraduates strong practical and theoretical experience with recombinant DNA methods within 3 weeks. After deducing restriction enzyme maps for two different plasmids, students ligate the plasmids together in the same reaction, transform "E. coli" with this mixture of…

Having taught K-12 students and preservice teachers for almost 20 years, the author knows the problems that arise when students are asked to generate an investigation of their own design. Therefore, she developed some lessons that significantly increased the diversity and quality of the investigations students generated. This article describes…

This paper describes a simple, rapid and low-cost technique for growing bacteria (or other microbes) in an environmental gradient, in order to determine the tolerance of the microbial population to varying concentrations of sodium chloride ions, and suggests how the evolutionary response of a microbial population to the selection pressure of the…

The authors describe findings from a research synthesis on content area instruction for students with disabilities. Seventy studies were identified from a comprehensive literature search, examined, and coded for a number of variables, including weighted standardized mean-difference effect sizes. More than 2,400 students were participants in these…

To what degree do teacher participants in one science enhancement institute intend to use the information in the classroom the next fall? What factors assist this extension of learning? What factors detract from teachers applying new knowledge in the classroom? Sixteen second- to eighth-grade science teachers from a physical and life science…