Human cognition is founded, in part, on four systems for representing objects, actions, number, and space. It may be based, as well, on a fifth system for representing social partners. Each system has deep roots in human phylogeny and ontogeny, and it guides and shapes the mental lives of adults. Converging research on human infants, non-human…

The development of visual interaction between mother and infant has received much attention in developmental psychology, not only in humans, but also in non-human primates. Recently, comparative developmental approaches have investigated whether the mechanisms that underlie these behaviors are common in primates. In the present study, we focused…

In this article, the author presents three themes that can form the basis for exciting world language instruction in Spanish, French, and Chinese at any grade level. These three themes (the prehistoric world; endangered species; and space exploration) use basic science as a context for communication that generates student excitement and enthusiasm…

In a collaborative effort between university researchers and high school science teachers, an inquiry-based laboratory module was designed using two species of insecticidal nematodes to help students apply scientific inquiry and elements of thoughtful experimental design. The learning experience and model are described in this article. (Contains 4…

It's the first day of the "Animals" unit for Tami Brester's third-grade class and the first day her students are using Glossopedia, a free online multimedia science encyclopedia. But you wouldn't know that from observing the kids, who are excitedly researching animals on the internet. This is inquiry-based learning of a special kind, incorporating…

When asking about animals, it is hard to find a person who doesn't recall a beloved pet or share that they've always loved dolphins, snakes, or ladybugs. A study of animals in an early childhood classroom, then, would seem an easy entry into science explorations with children. The article includes reflections on teaching to address the gaps…

This book contains over 30 investigations and activities that can be used or adapted for science fair projects. It outlines basic techniques and procedures that can be applied to zoological investigations. Projects and activities described include: finding out how many different kinds of insects and other arthropods live in nearby fields and…

This book is a collection of life science classroom demonstrations. Explanations that review key concepts are included. Topics are: stimulus and response; gravitropism; phototropism; living organisms; carbon dioxide; gases emitted by plants; greenhouse effect; stomata; transpiration; leaf skeletons; seed growth; water evaporation in plants; carbon…

Four experiments, all employing the conditioned suppression of licking in thirsty rats, examined the extent to which reinforcement of one component, A, of a compound conditioned stimulus, AB, would "block" conditioning to the other element, B, on the first compound trial. (Editor)

A direct and definitive response to the creationist Noah's ark arguments is presented in this publication. Although the Bible is used as a constant reference point, the author does not engage in biblical criticism. The critique is rather directed at the leading creationist books and experimental studies that seek to scientifically prove that the…

These selected readings are designed to supplement James Gillespie's "Modern Livestock and Poultry Production" (2nd edition) as the the student reference for the advanced dairy unit. Readings are provided for 18 lessons. Topics include profitability of the dairy enterprise; production costs for dairy; comparative advantages of dairy; milk…

Provided are suggestions for student investigations of life in swift stream communities, in slow stream areas and near a spring. (PEB)

To investigate the possible cue (stimulus) as opposed to motivational functions of drive and reward, this study assessed the effects of problem difficulty, reward magnitude, and drive level on the performance of rats in visual discrimination tasks entailing both choice and speed measures. (Editor/RK)

The following experiments are an attempt to clarify the role of learned safety by investigating the applicability of the concept of conditioned inhibition to a taste-aversion procedure and by differentiating its effects fromthose of latent inhibition. (Author)