The focus of this paper is on selected recent South African research studies that have explored efforts to promote the discussion, writing, and arguing aspects of scientific literacy in primary and middle schools, particularly amongst second-language learners. These studies reveal improvements in the participants' abilities to both use the…

Presented are three methods for dealing with chemical problems involving reaction stoichiometry. (RH)

Describes Diagnosis for Instruction in Problem Solving (DIPS), a new line of research for science educators interested in interdisciplinary efforts and ways in which computer technology might be used to better understand how to improve science teaching. Outlines the basic architecture of DIPS in terms of instruction and research implications.…

Based on an analysis of structured interviews with 6 research university physics faculty members, this paper presents our initial hypothesis of instructors' beliefs about how their students learn to solve problems in an introductory physics courses. The hypothesis shows that these instructors have very general beliefs about the process of student…

The author calls attention to four neglected aspects of gifted children's education in scientific thinking: problem finding, problem solving, problem reevaluation, and scientific reporting. (SW)

Discusses the continuity equation and presents two real-life problems involving salmon survival and the construction of dams. (JRH)

Explains that, to teach students how to solve problems, defining the problem should be the focus, and the skills to solve the problem should be analyzed. Differentiates between exercises and real problems. (PR)

Mathematical language and chemical knowledge are complementary to each other and only productive use of the two enables using numbers to gain solutions rather than just answers. It is believed to be important in the understanding of science that students feel free to speak mathematics and only a few of them are willing to connect and use their…

The calculations of uncertainties in the formula or molar masses of compounds are streamlined. Three rules of increasing complexity are proposed, which overestimate the uncertainty so there is little if any risk that the true values are missed.

Problem-solving is one of the main goals in science teaching and is something many students find difficult. This research reports on the development, implementation and evaluation of a problem-solving heuristic. This heuristic intends to help students to understand the steps involved in problem solving (metacognitive tool), and to provide them…

This case was developed for a sophomore organic chemistry lab to illustrate how a combination of techniques is usually required in the identification of chemical compounds. It involves a murder mystery with a forensic twist: Two bodies have been recovered from two different lakes, but because of a mix-up at the morgue, the coroner is unable to…

The role of games within education becomes clearer as students become more active and are able to take decisions, solve problems and react to the results of those decisions. The educational board game "Discovering the Cell" ("Celula Adentro"), is based on problem-solving learning. This investigative game attempts to stimulate…

The aim of this study was to investigate effectiveness of PDEODE (Predict-Discuss-Explain-Observe-Discuss-Explain) teaching strategy in helping students make sense of everyday situations. For this, condensation concept was chosen among many science concepts since it is related to many everyday-life events. Forty-eight eleventh graders students…

The study investigated the effects of structured and unstructured cooperating groups on students' behaviors, discourse and learning in junior high school. One hundred and sixty-four grade 9 students participated in the study. The students were videotaped as they worked in three to four person, mixed-gender and ability groups on a science-based…

One way of implementing project-based science (PBS) is to use problem-based learning (PBL), in which students formulate their own problems. These problems are often ill-structured, mirroring complex real-life problems where data are often messy and inclusive. In this article, the authors describe how they used PBL in a ninth-grade biology class in…