Instructional and assessment activities for unit seven of a science/math strand for Spanish-speaking students in grade three focus on the extended community. Activities support four spiraling questions on the elements, wants and needs, change occurrence, and results of change. For each activity, the focus, objective, and materials needed are listed in English and Spanish; detailed teacher instructions are in Spanish only. Content covers plants and animals and their means of survival; life cycles (reproduction, death); impacts of birth/death rates; Roman numerals to XII; the clock, calendar, days of the week, months, and seasons; harmful and beneficial insects; regrouping techniques for adding and subtracting two-digit numbers; ruler, yardstick, and liquid measurements; photosynthesis; nongreen plants; food chains of man/animals; how communities interact; interdependence of living organisms; ecosystem; construction of histogram and bar graph; and identification of line segments, points, intersections, and figures. Science concepts are variation, equilibrium, matter, energy, conservation, relativity, organization systems, interaction, adaptation, change, reproduction, force. (RS)