Outlines a model which describes the processes that a learner goes through in attempting to solve problems, and suggests ways to assist students in reaching a solution when they are confronted by an apparent impasse. (JR)

Reports on the winning tool creations by 1,300 fourth-, fifth-, and sixth-grade students in the 1997 Craftsman/NSTA Young Inventors Awards Program. Students had to use mechanical and science process skills to design and build tools to meet their needs in solving a problem. The winning entry was a calibrated angle and depth scissors. (AIM)

The classroom use of attribute blocks to develop thinking skills is defended in this article. Divergent-productive thinking is identified as an important skill that can be developed by using these blocks. However, teacher commitment and involvement in the program is considered necessary. Suggestions for using these blocks are included. (MA)

Discussed is the role of serendipity in the scientific method. Several examples from science history are provided. Described is the value of intuition on the part of the scientist. Six quotes from famous scientists are included. (CW)