Many inquiries regarding the causal effects of policies or programs are based on research designs where the treatment assignment process is unknown, and thus valid inferences depend on tenuous assumptions about the assignment mechanism. This article draws attention to the importance of understanding the assignment mechanism in policy and program…

This column discusses resources and science topics related to students in grades preK to 2. The author discusses teachers using technology to help students develop a science inquiry. Teachers can use technology to help students develop a science inquiry--express ideas, document observations, research information, discuss results, and relate…

Background/Context: This article considers issues related to the intersection of mental health and education. Typically, in both educational and noneducational settings, atypical mental health conditions are described and treated as "disorders." The author challenges conventional understandings of mental health and how to address it, particularly…

The confluence of powerful technologies of computers and network connectivity has brought explosive growth to the field of Information Technology (IT). The problem presented in this study is whether the type of learning environment where IT concepts are taught to undergraduates has a relationship to the development of IT fluency and course…

The TLRP has provided a wealth of information that can form the foundation of conversations and debate for researchers, policy-makers and practitioners. This paper focuses on two of the issues raised by James and Pollard: (1) the methodology that they used to analyse and synthesise the learning from massive amounts of data into a coherent and…

The focus of this issue of the "IJTD" on organization development reinforces the importance of a continuing exploration of change. This is even more significant when considering that change is not only unavoidable but is also occurring with greater speed. Models of planned change may no longer be sufficient to address the needs of today's…

A comprehensive review of the literature was conducted for articles published between 1985 and May 2009 to (a) examine the degree to which science content was taught to students with severe developmental disabilities and (b) and evaluate instructional procedures in science as evidence-based practices. The review was organized by a conceptual model…

A compass is an excellent classroom tool for the exploration of magnetic fields. Any student can tell you that a compass is used to determine which direction is north, but when paired with some basic trigonometry, the compass can be used to actually measure the strength of the magnetic field due to a nearby magnet or current-carrying wire. In this…

Meeting the challenge of program accountability is a goal for teacher education programs across the USA. In this context, achieving effective assessment practices that provide concrete evidence of program participants' knowledge and skills has become both an increasingly significant issue and a challenge to teacher education programs seeking to…

"We really need to get the government involved," said one student, holding his graph up to USDA scientist Steve Seefeldt. Dr. Steve studies methods to control "invasive" plants, plants that have been introduced to an area by humans and have potential to spread rapidly and negatively affect ecosystems. The first grader and his…

Schools are under increasing pressure to meet accountability requirements and show growth in student achievement across tested content areas. As a result, throughout the school year, student achievement data are analyzed to discover data trends that highlight both student gains and gaps in learning. Achievement gaps are identified and addressed…

This study examines the use of inquiry-based instruction to promote the understanding of critical concepts in thermodynamics and heat transfer. Significant research shows that students frequently enter our courses with tightly held misconceptions about the physical world that are not effectively addressed through traditional instruction. Students'…

The problem of a ladder leaning against a wall in static equilibrium is a classic example encountered in introductory mechanics texts. Most discussions of this problem assume that the static frictional force between the ladder and wall can be ignored. A few authors consider the case where the static friction coefficients between ladder/wall…

Reconceptualists and poststructuralists increasingly criticize child-centered pedagogy as being overly reliant on outmoded notions of (developmentally appropriate) practices. Reconceptualists believe that developmental theories should be critically examined cross culturally, whereas poststructuralists work from a social perspective to reconstruct…

Role theory is based in a conception of a social world wherein various roles are either available or made available and those participating in such worlds shape their identity according to the roles that are made available to them. In positioning theory, Haare and van Langenhove (1998) suggest that teachers are always in the process of…