Human beings are having a profound impact on the environment. The opportunity to investigate this timely issue during one or two class periods gives algebra and precalculus students insight into a sustainability topic of great international concern--carbon footprints. Students use mathematical thinking in matters that are pertinent to their…

Dealing with difficult behavior is a matter of awareness of the factors involved in prediction, prevention, and instruction. This means three things: Teachers know, or can be assisted in thinking through the environmental events and contexts that are associated with higher probabilities of problem behavior. Second, teachers can actively manipulate…

An activity in which students establish criteria outlining what constitutes wasted paper, calculate averages, and compute the number of trees needed to produce a measured amount of wasted paper is described. The mathematics and science concepts, objectives, rationale, content overview, lesson outline, and extensions are included. (KR)