This article reports on our work of developing a learning progression focusing on K-12 students' performances of using energy concept in their accounts of carbon-transforming processes in socio-ecological systems. Carbon-transforming processes--the ecological carbon cycle and the combustion of biomass and fossil fuels--provide all of the energy…

Outlines a model of mathematical understanding as a whole, dynamic, nonlinear, recursive growing process, entailing "folding back" for the reconstruction of inner level knowing. Presents examples from seventh graders' work. Discusses teacher awareness of student level of understanding, and implications for development of mathematics…

Criticizing a conventional view on the subject, this essay distinguishes the concept of educating an individual--that is, transmitting knowledge of any kind--from that of developing an "educated person," and discusses the implications of this distinction for schools' purposes and curricula. (MCG)

The New Jersey Task Force on Thinking has taken the first steps toward statewide assessment of students' thinking skills. Efforts were made to (1) define requisite thinking competencies, (2) explore measurement of thinking competencies, and (3) make recommendations accordingly. Preliminary findings are reported. (TE)