1,250 research outputs found
Teacher formative assessment: the missing link in response to intervention
No full textResponse to Intervention (RtI) focuses on the assessment, intervention, and progress monitoring of student academic performance and social behavior. Despite requiring highly-qualified personnel for successful implementation, the implementation of Rtl has not focused on applying its foundational principles towards promoting teacher effectiveness through assessment, intervention, and progress monitoring of teacher classroom practice. Compounding this problem is the lack of availability of reliable and valid teacher assessments to apply in an Rtl model for teacher professional development. This chapter provides a rationale for applying RtI principles to teacher professional development and how teacher formative assessment can improve educator effectiveness, student learning, and social behaviors. The Classroom Strategies Scale (CSS, Reddy & Dudek, 2014), a new multidimensional assessment of instructional and behavioral management practices is discussed as an example of one promising tool for promoting teachers professional development within an Rtl model. We offer a synthesis of the theory, research, and evidence of reliability and validity of the CSS. The application of teacher formative assessment in job-embedded professional development/coaching models for schools is discussed. Finally, implications for practice and research are outlined.Peer reviewe
An introduction to continuum mechanics / J.N. Reddy.
No full textengineering bookfair2015Includes bibliographical references and index.xxvi, 450 pages :"This best-selling textbook presents the concepts of continuum mechanics in a simple yet rigorous manner. The book introduces the invariant form as well as the component form of the basic equations and their applications to problems in elasticity, fluid mechanics, and heat transfer, and offers a brief introduction to linear viscoelasticity. The book is ideal for advanced undergraduates and beginning graduate students looking to gain a strong background in the basic principles common to all major engineering fields, and for those who will pursue further work in fluid dynamics, elasticity, plates and shells, viscoelasticity, plasticity, and interdisciplinary areas such as geomechanics, biomechanics, mechanobiology, and nanoscience. The book features derivations of the basic equations of mechanics in invariant (vector and tensor) form and specification of the governing equations to various coordinate systems, and numerous illustrative examples, chapter summaries, and exercise problems. This second edition includes additional explanations, examples, and problems"-
Advancing instructional coaching with teacher formative assessment and input
No full textWith increased attention to teacher quality and accountability, instructional coaching has emerged as a popular form of teacher support and professional development in literacy and other areas of instruction. Despite significant interest from school personnel, researchers, and federal funders, there remains a lack of consensus around the key components and activities of instructional coaching. To that end, studies that use quantitative and qualitative methods can offer valuable information on the development and validation of coaching practices. This chapter briefly describes the Classroom Strategies Assessment System Coaching Model that draws on the adult learning and formative assessment literature. We offer key observations of educators' knowledge of and experience in instructional coaching from focus groups conducted with teachers in high-poverty, urban elementary schools. Directions for practice and research are discussed.Peer reviewe
Stress Waves in Nonhomogeneous Elastic Rods
No full textLongitudinal wave propagation in a nonhomogeneous semi infinite elastic rod is considered. The non homogeneity may be due to the axial variation of Young\u27s modulus or of density or of both. An arbitrary time dependent stress is applied at the end, x = 0, of the rod. The normal stress as a function of position and time is obtained using the theory of the propagating surfaces of discontinuity by expanding the stress as a Taylor series about the time of arrival of the wavefront. The coefficients of the Taylor expansion are obtained as solutions of linear ordinary differential equations with variable coefficients. For the case where the Young\u27s modulus E(x) varies as (1 + ax)2a, it is shown that the stress at the wavefront varies as (1 + ax)⋔±, where a and ⋔± are constants. © 1966, Acoustical Society of America. All rights reserved
pH dependence of the multiline, manganese EPR signal for the ‘S2’ state in PS II particles Absence of proton release during the S1 → S2 electron transfer step of the oxygen evolving system
No full textAbstractThe pH dependence of oxygen evolution rates, 2,6-dichlorophenolindophenol (DCIP) reduction rates and the intensity of the multiline manganese EPR signal associated with the S2 Kok state has been studied using oxygen-evolving spinach (PS) II particles. The oxygen evolution and DCIP reduction rates are found to be very sensitive to pH, with the maximal rates occuring at pH 6.5–7.0. Both the rate and yield of the S1 multiline manganese EPR signal intensity, produced by single flash excitation at room temperature or by continuous illumination at 200 K, are found to be independent of pH, indicating that no proton is released from this manganese site during the S1 → S1 electron transfer. These results agree with those from other laboratories showing no proton release on this transition, but using techniques monitoring other species
Service-oriented models for audiovisual content storage
No full textWhat are the important topics to understand if involved with storage services to hold digital audiovisual content? This report takes a look at how content is created and moves into and out of storage; the storage service value networks and architectures found now and expected in the future; what sort of data transfer is expected to and from an audiovisual archive; what transfer protocols to use; and a summary of security and interface issues
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