In case-based learning, students develop and apply course knowledge to solve tangible and "real life" problems. This practice can enhance student motivation and engagement in the analytical laboratory. In this application of case-based learning students analyze commercially available oils for CBD content. In the state of Texas anyone can…

This paper presents results from three teaching experiments intended to guide students to reinvent truth-functional interpretations for mathematical disjunctions. The initial teaching experiments revealed that students' emergent strategies for assessing disjunctions did not entail or facilitate the development of a relevant partitioning of example…

Quek, Tay, Toh, Leong, and Dindyal (2011) proposed that a design-theory-practice troika should always be considered for a designed package to be acceptable to the research users who, in this case, are teachers and schools. This paper describes the fine-tuning to the MProSE problem-solving design made by the teachers in the school after first round…

This paper reports on a study that examines the effects of problem context on students' performance. The performance of 151 Year 10 students on six mathematical problems was compared with the performance on fifteen variants with more and less context familiarity (CF) and engagement (CE) across levels of context use (LCU). The latter explanatory…

Although learning from multiple representations has been shown to be effective in a variety of domains, little is known about the mechanisms by which it occurs. We analyzed log data on error-rate, hint-use, and time-spent obtained from two experiments with a Cognitive Tutor for fractions. The goal of the experiments was to compare learning from…

This study addressed the problem of why students with learning disabilities in mathematics too often fail to develop multiplicative and divisional concepts/operations. We conducted a constructivist teaching experiment with 12 students (nine 5th and three 4th graders). This report focuses on three students' conceptual progress, particularly on…

This paper proposes a learning based method that can automatically determine how likely a student is to give a correct answer to a problem in an intelligent tutoring system. Only log files that record students' actions with the system are used to train the model, therefore the modeling process doesn't require expert knowledge for identifying…

Science teaching practices at the Long Island School for the Gifted emphasize hands-on experiments where children do the work and the teacher assists learning. This approach bypasses the reading/writing barrier that prevents some children from learning science. Many science experiments are described, including a first-grade lesson on using…

This paper presents the design and some results of a series of teaching experiments. The design was created to develop a model for everyday math lessons, that describes the conditions which foster or hinder the construction of new mathematical meanings. The development process includes the students' epistemic processes, their social interactions,…

This study sought to connect the science activity educational approach to the higher cognitive development of students using a relatively new learning model, the Cultural Historical theory, based upon the work of Vygotsky. The theory advances the concept that children's intellectual development occurs in interactions with an adult or more capable…

To examine how conceptual knowledge about fraction magnitudes changes as students' learning progresses, 5th and 7th-grade students were asked to solve fraction magnitude problems that entailed finding a fraction between two given fractions and then to evaluate solutions for similar problems that were modeled for them. When the given fractions…

A study was conducted to examine the observation that untutored Grade 7 students appeared to have tacit knowledge of how to solve problems in a technological context. Left to their own devices in an environment rich in three-dimensional materials, they frequently designed a solution to a problem in unique and creative ways. Based on experts'…

Research offers important suggestions concerning science curriculum design, and real-time data collection technology offers great opportunities. This paper discusses how recent increases in understanding the nature of the learner and the process of instruction combined with recent advances in technology might lead to improved science instruction.…

Reported is a study to investigate the effects of a free-choice program on children's ability to interpret experiments, design simple investigations, and recognize variables that could affect the outcome of observed events. (Author/SA)

This paper presents the experiment being conducted in the Electric Circuits II course (ELE1103) at PUC-Rio's Electrical Engineering Department since March 1997. This experiment was held in both the fall and the spring semesters of 1997. The basis for the experiment was concurrent teaching methodology, to which the principles of entrepreneurship…