This article introduces an online jigsaw model for preservice teachers' science content learning. Following a description of the model and its developmental genesis, analysis of an external proficiency measure serves to evaluate the model's validity. Data stem from a sample of 333 students who completed physical science courses in either a…

This manual informs tutors/evaluators and students about the Caribbean Examinations Council's (CXC) school based assessment (SBA) of integrated science skills. It includes directions for the teacher/evaluator and a student activity package. The SBA is done in agricultural science, biology, chemistry, integrated science, and social studies and is…

This classroom kit, designed by curriculum developers working with teachers and scientists from the SETI (Search for Extraterrestrial Intelligence) Institute, helps teachers guide students in the exploration of life through the multidisciplinary sciences of paleontology and exobiology. It reflects the real-life methods of science: making…

This paper describes part of a study undertaken to examine the relationship between dispositions to critical thinking, procedural knowledge in science, and formal reasoning. Three tests were administered to 346 grade 7 students at the beginning and at the end of the school year: California Critical Thinking Dispositions Inventory, Group Assessment…

Students designed and manufactured compact, shell-and-tube heat exchangers in a project-based learning exercise integrated with our heat transfer course. The heat exchangers were constructed from common building materials available at home improvement centers. The cost of materials for a device was less than $20. The project gave students…

This study examined whether there was a relationship between preservice elementary teachers' competency in science process skills and attitudes toward the field of science. Study data came from 46 students enrolled in an elementary math and science methods course during their first senior semester, just before entering student teaching. Study…

One of our most valuable and often overlooked resources is water. We can survive for a couple of weeks without food but only a few days without water. Having clean water to drink is a luxury. The water that comes out of our faucets does not always start off safe to drink. Most often it has visited a treatment plant prior to reaching our glasses.…

Rube Goldberg is famous for his very complex machines that accomplish everyday tasks. In this activity, students design and build a Rube Goldberg machine that will accomplish a simple task in no less than 10 steps. This activity requires a 120-360 minute time period for completion. (Author/SOE)

When asked to list some strong materials, people think of steel, concrete, and wood. In this activity, students learn about the force of compression and how it acts on structural components through a hands-on group problem. Using everyday products such as paper, toothpicks, and tape, students construct a structure that will support the weight of a…

This document represents the content of science education in California and includes the essential skills and knowledge students will need to be scientifically literate citizens in the 21st century. The standards include grade-level specific content for kindergarten through grade 8. A significant feature is the focus on earth science in the 6th…

Mastering science involves not only developing the skills of doing science, but also developing the skill of taking science. This paper describes how a teacher tried to help her students develop appropriate scientific ways of presenting explanations. The teacher employed a number of strategies as she and her students jointly constructed…

This resource book presents 37 behavioral experiments that can be performed with commonly-found classroom animals including hamsters, gerbils, mice, goldfish, guppies, anolis lizards, kittens, and puppies. Each experiment explores the five steps of the scientific method: (1) Question; (2) Hypothesis; (3) Methods; (4) Result; and (5) Conclusion.…

This paper describes the development, administration, and results of an instrument to assess changes in students' science abilities as they progress from ninth grade through twelfth grade. Standard science tests commonly in use in schools to measure high school science students' achievement are content specific. Although these tests are useful…

Explores the issue of how to make chemistry more personally meaningful to students who have no interest in continuing the study of science. Describes two projects that each have an interview, research, and presentation format. (DDR)

Considers the role of evolution and natural selection in the functioning of the modern human brain. Natural selection equipped humans with a mental toolbox of intuitive theories about the world which were used to master rocks, tools, plants, animals, and one another. The same toolbox is used today to master the intellectual challenges of modern…