Preservice teachers\u27 voices : images of teaching and the self.

In the last decade there has been a surge of interest in preservice teachers\u27 thinking. By and large, research studies have focused on the final student teaching period of preservice teacher education. However, little is known about future teachers\u27 perspectives on teaching and the self prior to student teaching. This study--based on social constructivism and dialectical approach to teacher socialization--examined the biographies, notions of identity, epistemological perspectives, and current views about teaching of 15 entering preservice teachers at a large state university, using qualitative analysis of in-depth interviews. Interview questions focused on participants\u27 interpretation of their educational experiences, their perspectives of themselves as learners, and their ideas about teaching. The results are presented in relation to the three themes: images of the self, images of teachers and teaching, and towards the image of self as a teacher. Participants\u27 perspectives of themselves as knowers as well as their social group memberships significantly affected their notions of themselves as teachers, their perceptions of their future students, and their priorities in teaching. The results indicate the importance of opportunities to experience mastery in the domains preservice teachers would teach like math, science, or writing, and the need for inquiry into metaphors describing teachers and images of teaching during teacher education. The case is made for including epistemology in the content of teacher education curricula

Antiferromagnetism in semiconducting KFe0.85Ag1.15Te2 single crystals

We have synthesized single crystals of K1.00(3)Fe0.85(2)Ag1.15(2)Te2.0(1). The materials crystallizes in the ThCr2Si2 structure with I4/mmm symmetry and without K and Fe/Ag deficiencies, unlike in KxFe2-ySe2 and KxFe2-yS2. In contrast to theoretical prediction for higher Tc in KFe2Te2, KFe0.85Ag1.15Te2 is a semiconductor with long-range antiferromagnetic transition at TN = 35 K.Comment: 4 pages, 4 figure