This document consists of two issues of the journal "Seedbed," an outcome of the Teachers' Center Project at Southern Illinois University at Edwardsville. Designed to be neither scholarly nor trivial, each issue is a collection of teachers' ideas that they thought worth sharing with other teachers as "seedlings" to be developed, helping teachers to construct a point of view toward the intellectual growth of children or promoting children's thoughtful probing of mathematical ideas. Issue Number 27 contains 31 articles, including some which share ideas and reactions to a week spent by teachers in Yorkshire, England, schools. Number 28 contains 38 articles with an array of activities plus comments on children's educational growth and well being. (PK)