Toward the mark of empowering policies in elementary school science programs and teacher professional development

In this commentary, I discuss how policy initiatives play out in two different contexts for elementary school teachers yet produce very similar outcomes regarding teachers’ professional development and school science learning for elementary students. Ironically, the outcomes that we want see in elementary school science learning and professional development are not realized when policies are introduced that distract from practices that were working prior to new reforms.     

WHY WE NEED TO TAKE RISKS

我们为什么需要冒险？这个问题,也许很多人都没有考虑过,因为过着平淡稳定的生活,让我们满足,让我们舒适。但是如果反过来,温水青蛙的故事对我们同样是个警示。这里,让我们从心理学专业的角度看起,找出我们需要冒险的理由吧!     

English renewed: Visions of English among teachers of 1966

This article examines the way in which curriculum renewal in English teaching in the late 1960s was brought about largely through the democratic process of teacher participation. It describes the role that the newly formed National Association for the Teaching of English (NATE) played in creating the process in conjunction with American colleagues from the National Council of Teachers of English (NCTE) at the 1966 Dartmouth Conference. The author, who participated in this event, describes the values debated at this conference which underpinned reform and which were subsequently tested out and implemented in England by practitioners in schools, supported by NATE local branches. He asks the reader to consider the ways in which this process of reform differs from the ways in which processes of curriculum change are currently structured.     

Action Learning: More Than Just A Task Force

Action learning, as it is often implemented in the U.S., differs little from a typical cross-functional task force. Those characteristics of action learning that originated with Reginald Revan's work and that have such potential to change both organizations and participants are often absent in the Americanized version of action learning. Outlined here are the principles that underlie Revan's work as well as an explanation of why they are so critical to both individual development and organizational problem resolution. These principles are then contrasted with a case study of a Fortune 500 company which implemented the more Americanized version. The benefits of that implementation are explored as well as a discussion of the learning difficulties the teams experienced.     

Dynamic behaviour of soils used for natural turf sports surfaces

The modulus and damping properties of soils in compression are a function of soil type, water content, stress history and loading rate. To model human–surface interaction with natural turf sports surfaces, stiffness and damping properties must be determined at dynamic loading rates. Two contrasting soil types, a Sand and a Clay Loam, commonly used in sports surfaces were loaded uniaxially to 2 kN at loading rates between 0.6 and 6 kN s⁻¹ in modified dynamic soil testing apparatus. Soils were compacted prior to loading but initial cycles resulted in viscoplastic deformation, with strain accumulation with repeated cycles of loading. Ultimately a resilient, viscoelastic steady-state equilibrium with loading was established. Resilient modulus and damping ratio varied with soil type, water content, stress history and increased significantly with loading rate. The resilient modulus of the Sand soil, typical of modern free-draining sand construction natural turf sports surfaces, was significantly greater than that of a Clay Loam soil more characteristic of traditional natural turf surfaces; reducing water content caused an increase in modulus and a decrease in damping ratio in the Clay Loam soil. Determination of these properties provides initial data for the modelling natural turf surface behaviour in terms of both ball and human interactions, with further research required to determine the effect of both grass roots and leaves on mechanical behaviour.     

Does exposure to orthography affect children's spelling accuracy?

It has previously been reported that exposure to visually presented correctly and incorrectly spelled words has a significant effect on subsequent spelling accuracy. Previous research investigating this process in skilled adult readers has shown very robust effects that encountering a misspelling has a detrimental effect on spelling accuracy whereas encountering a correct spelling has a beneficial effect. This effect is considered to be mediated via an implicit priming mechanism. In the current study, children with a mean age of 10 years were tested using a similar procedure to the experiments with adults but the results revealed a qualitatively different pattern. Children showed a significant beneficial effect following presentation of a correct spelling but no measurable effect of encountering a misspelling on subsequent spelling accuracy. The fact that children's spelling output was also found to be affected by depth of encoding at the point of presentation points towards an explanation of children using explicit rather than implicit processing of prior information.