Student Engagement in a Flipped Secondary Mathematics Classroom

International Journal of Science and Mathematics Education - Many students are becoming increasingly disengaged in school, particularly in mathematics. This is an important problem as lack of...     

Perceptions of elementary teachers on the instructional leadership role of school principals

In this research, elementary school principals＇ instructional leadership behavior was evaluated based on the perceptions of elementary school teachers. The research is believed to contribute to the development of instructional leadership behavior of elementary school principals for the development of school organization. A ＂semi-structured interview technique＂, one of the qualitative research methods in the literature was used in the research. The study group was made up of elementary school teachers working in Nigde, Turkey, during the 2008-2009 academic year. For the study sample, one teacher from each school was selected at random, resulting in group of twenty elementary school teachers. Based on the content analysis, five themes of instructional leadership behavior were found. These themes are： （1） determination of the school＇s purpose; （2） management of instruction; （3） evaluation of students; （4） support to teachers; and （5） creation of a regular learning-teaching environment.     

Laboratory policies and practices for thyroid function tests in Croatia: survey on behalf of Working Group for Laboratory Endocrinology of the Croatian Society of Medical Biochemistry and Laboratory Medicine

IntroductionLaboratory plays important part in screening, diagnosis, and management of thyroid disorders. The aim of this study was to estimate current laboratory preanalytical, analytical and postanalytical practices and policies in Croatia.Materials and methodsWorking Group for Laboratory Endocrinology of the Croatian Society of Medical Biochemistry and Laboratory Medicine designed a questionnaire with 27 questions and statements regarding practices and protocols in measuring thyroid function tests. The survey was sent to 111 medical biochemistry laboratories participating in external quality assurance scheme for thyroid hormones organized by Croatian Centre for Quality Assessment in Laboratory Medicine. Data is presented as absolute numbers and proportions.ResultsFifty-three participants returned the questionnaire. Response rate varied depending on question, yielding a total survey response rate of 46-48%. All respondents perform thyroid stimulating hormone (TSH). From all other thyroid tests, most performed is free thyroxine (37/53) and least TSH-stimulating immunoglobulin (1/53). Laboratories are using nine different immunoassay methods. One tenth of laboratories is verifying manufacturer’s declared limit of quantification for TSH and one third is verifying implemented reference intervals for all performed tests. Most of laboratories (91%) adopt the manufacturer’s reference interval for adult population. Reference intervals for TSH are reported with different percentiles (90, 95 or 99 percentiles).ConclusionThis survey showed current practices and policies in Croatian laboratories regarding thyroid testing. The results identified some critical spots and will serve as a foundation in creating national guidelines in order to harmonize laboratory procedures in thyroid testing in Croatia.     

A multilevel modeling approach to investigating factors impacting computer and information literacy: ICILS Korea and Finland sample

Education and Information Technologies - With the rapid technological advancements, schools and teachers have great responsibilities to educate students with regard to technological...