Single nucleotide polymorphisms (SNPs) in DNA can result in phenotypes where the biochemical basis may not be clear due to the lack of protein structures. With the growing number of modeling and simulation software available on the internet, students can now participate in determining how small changes in genetic information impact cellular…

A nanotechnology module was developed for ninth grade students in the context of teaching chemistry. Two basic concepts in nanotechnology were chosen: (1) size and scale and (2) surface-area-to-volume ratio (SA/V). A wide spectrum of instructional methods (e.g., game-based learning, learning with multimedia, learning with models, project based…

This paper presents low-cost experiments for a control systems laboratory module that is worth one and a third credits. The experiments are organized around the microcontroller-based control of a permanent magnet dc motor. The experimental setups were built in-house. Except for the operating system, the software used is primarily freeware or free…

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…

NASA will launch Space Station Freedom piece by piece in the cargo bay of space shuttles. The process is scheduled to start in 1995 and be completed in 1999. This pamphlet presents factual information and accompanying hands-on science activities concerning the following aspects of the project: (1) the space shuttle's role in transport; (2) the…

Over the past several years, the authors have been developing an instructional technology, called Teachable Agents (TA), which draws on the social metaphor of teaching to help students learn. Students teach a computer character, their "agent," by creating a concept map of nodes connected by qualitative causal links. The authors hypothesize that…

Multimedia applications can provide enormous enrichment to the methodology of teaching, learning and learning by doing. When developing applications for the teaching of engineering design using these means of communication it is important to consider the special features of this field. This contribution gives a report on the experience gained by…

There are ways in which elementary teachers in general and rural elementary teachers in particular can overcome inadequate science preparation and can upgrade the science program resources of their small schools. Parents and children should be involved in obtaining free and inexpensive science-related materials throughout the year. These can be…