Packaging and the Environment - Mesa Author:Christine V. Johnson The MESA Series combines essential pre-algebra topics with exciting hands-on science explorations to motivate students in both mathematics and science. Using materials and group collaboration to solve open-ended problems, students make connections between classroom and real-world mathematics and science. These easy-to-use Teacher Resource Books ... more »include activity overviews, background information, reproducible activity masters, and assessment strategies. Grades 5-8« less