Investigates processes leading to a rationale for designing a teacher's manual. A sample of 45 teachers was used to give feedback information before, during and after teaching a newly developed laboratory block in genetics for the eleventh-twelfth grade level in Israel. (HM)

Many have called for reform of the science curriculum to incorporate the process of inquiry: this has been shown to improve student understanding of biological concepts. Laboratory activities provide excellent opportunities to incorporate inquiry in to the curriculum. This study used a modified version of the Laboratory Task Analysis Instrument…