Assessment is primarily a matter of judgement rather than measurement, yet for too long the nation has been pretending that pupils' attainment and measurement can be measured in increasingly fine detail (one APS "point" being one sixth of an original National Curriculum level). The lack of validity and reliability of this approach…

Teaching is a complex activity that requires making ongoing multiple decisions and sporadic, responsive actions all while performing preplanned prescribed tasks. Evidence of certain aspects of teaching can be best assessed with a well-designed observation instrument. This instrument was designed to assess the enactment of the essential elements of…

The study reported in this article draws upon data collected for the programme "Increasing the Efficiency of Mathematics and Science instruction" (SINUS-Transfer), a professional development project in Germany. This programme's approach requires teachers to improve their teaching in a cooperative manner and with regard to pedagogical…