The PING Project is a pilot project of the German Federal and the State Com
mission for Educational Planning which supports teacher, in-service trainer
, and researcher co-operation to establish a practice of integrated science
education. Together the members of PING are developing a conceptual framew
ork, teaching material for integrated science education, and a structure of
co-operation. To ensure a reflexive development PING uses research that in
forms its members about the effects and conditions of development. Within t
his process, reflective practice is an essential structural element. Using
findings from a questionnaire and related in-depth interviews with five tea
chers this study asks: How can this reflective practice be structured? What
types of instruments are useful for inducing reflection? and How reflectio
n affects the understanding and application of PING?