Developed to provide ideas for the teaching of mathematics and science skills and processes, this booklet focuses on activities dealing with foods for students of middle school. The materials and equipment needed for most of the investigations can be found in the kitchen, market, or classroom. Each of the 25 activities have both student sheets and a teacher's guide. The teacher's guide contains information on the activities including: (1) topic area; (2) introductory statement; (3) math and science skills; (4) required materials; (5) key questions; (6) background information; (7) management details; (8) instructional procedures; (9) student procedures; (10) discussion questions; (11) activity extensions; and (12) curriculum coordinates. (ML)