The Greatest Constructivist Educator Ever: The Pedagogy of Jesus Christ in the Gospel of Matthew in the Context of the 5Es

The gospel message of Jesus Christ found in the New Testament requires the learner to believe in God, not as a result of works, but on a foundation of faith. In order to preach the principles of the kingdom of heaven effectively in a way the people could understand, Jesus employed teaching methodologies in the Gospel of Matthew that can be framed in the 5Es of constructivism and can be an example for educators today

Neutrino Mass and Oscillations

Current evidence for neutrino oscillation is reviewed, some areas for closer investigation are suggested, and a plausible future experimental program is summarized.Comment: Text of talk presented at Lepton-Photon 99 Conference, Stanford, Aug. 9-14, 1999; to be published in the Proceedings. LaTeX, 22 pages, 4 figures, 6 Postscript file

Why Newton's gravity is practically reliable in the large-scale cosmological simulations

Until now, it has been common to use Newton's gravity to study the non-linear clustering properties of the large-scale structures. Without confirmation from Einstein's theory, however, it has been unclear whether we can rely on the analysis, for example, near the horizon scale. In this work we will provide a confirmation of using Newton's gravity in cosmology based on relativistic analysis of weakly non-linear situations to the third order in perturbations. We will show that, except for the gravitational wave contribution, the relativistic zero-pressure fluid equations perturbed to the second order in a flat Friedmann background coincide exactly with the Newtonian results. We will also present the pure relativistic correction terms appearing in the third order. The third-order correction terms show that these are the linear-order curvature perturbation strength higher than the second-order relativistic/Newtonian terms. Thus, the pure general relativistic corrections in the third order are independent of the horizon scale and are small in the large-scale due to the low-level temperature anisotropy of the cosmic microwave background radiation. Since we include the cosmological constant, our results are relevant to currently favoured cosmology. As we prove that the Newtonian hydrodynamic equations are valid in all cosmological scales to the second order, and that the third-order correction terms are small, our result has a practically important implication that one can now use the large-scale Newtonian numerical simulation more reliably as the simulation scale approaches and even goes beyond the horizon.Comment: 8 pages, no figur

Science education on the U.S./Mexico border: Field-based studies for future teachers in bilingual/binational schools

The University of Texas at El Paso’s field-based program of studies for future teachers provides opportunities for powerful learning through a dialectical union of reflection and action. Methods courses in academic disciplines are linked with seminars and coursework on community partnerships, dual language education and culturally responsive education. This article illustrates the processes of planning, implementation and evaluation of this approach, highlighting the impacts of forging connections among schools, communities and university personnel to improve education on the U.S./Mexico border and in communities with culturally/linguistically diverse student populations. Parents, students and future teachers interact in bilingual workshops that center on pupil achievement and conceptually correct science education. Preliminary outcomes indicate that two-way dual language (TWDL) bilingual programs (i.e., validating native language literacy along with English language acquisition) with a strong parental engagement component provide a strong framework for teaching/learning that can help improve educational outcomes for ELL/immigrant children and deepen future teachers’ skills and knowledge. Focusing on academic enrichment for all students, these field-based experiences enable future teachers to learn strategies that integrate students’ and families’ linguistic and cultural experiences as a resource for learning. The co-authors highlight qualitative data findings from the Science in Our Homes – Ciencia en Nuestras Casas field-based project in a multilingual, multicultural K-8 school on the U.S./Mexico border, providing insights for educators in diverse communities whose efforts focus on closing the achievement gap for English language learners and/or immigrant students

Plastic collapse of pipe bends under combined internal pressure and in-plane bending

Plastic collapse of pipe bends with attached straight pipes under combined internal pressure and in-plane closing moment is investigated by elastic–plastic finite element analysis. Three load histories are investigated, proportional loading, sequential pressure–moment loading and sequential moment–pressure loading. Three categories of ductile failure load are defined: limit load, plastic load (with associated criteria of collapse) and instability loads. The results show that theoretical limit analysis is not conservative for all the load combinations considered. The calculated plastic load is dependent on the plastic collapse criteria used. The plastic instability load gives an objective measure of failure and accounts for the effects of large deformations. The proportional and pressure–moment load cases exhibit significant geometric strengthening, whereas the moment–pressure load case exhibits significant geometric weakening

High purith low defect FZ silicon

The most common intrinsic defects in dislocation-free float zone (FZ) silicon crystals are the A- and B-type swirl defects. The mechanisms of their formation and annihilation have been extensively studied. Another type of defect in dislocation-free FZ crystals is referred to as a D-type defect. Concentrations of these defects can be minimized by optimizing the growth conditions, and the residual swirls can be reduced by the post-growth extrinsic gettering process. Czochralski (Cz) silicon wafers are known to exhibit higher resistance to slip and warpage due to thermal stress than do FZ wafers. The Cz crystals containing dislocations are more resistant to dislocation movement than dislocated FZ crystals because of the locking of dislocations by oxygen atoms present in the Cz crystals. Recently a transverse magnetic field was applied during the FZ growth of extrinsic silicon. Resultant flow patterns, as revealed by striation etching and spreading resistance in Ga-doped silicon crystals, indicate strong effects of the transverse magnetic field on the circulation within the melt. At fields of 5500 gauss, the fluid flow in the melt volume is so altered as to affect the morphology of the growing crystal