The curriculum and resource guide for integrating mathematics, science, and English-as-a-Second-Language instruction is designed to help elementary school teachers organize classrooms and instructional activities to improve achievement of Hispanic children whose first language is not English. It offers a curriculum plan, instructional strategies and activities, suggested teacher and student materials, and assessment procedures that focus on acquisition of higher-order cognitive skills, understanding of relationships between mathematics and science concepts, specific knowledge, and language for communication and knowledge gain. An introductory section presents the assumptions underlying the guide, explains the guide's structure, and outlines classroom language activities related to mathematics and science processes. Subsequent sections present three grade 2 units (on oceans, weather, and the sun and stars) and three grade 2 units (on matter, sound, and simple machines). Each unit consists of seven or eight lessons on subtopics. Each unit begins with: information on students' expected prior knowledge; objectives for science, mathematics, and language acquisition; a vocabulary list in Spanish and English; teacher background information; and a grid of objectives for the lessons. Lessons contain notes for the teacher on presenting content information, assessment, and suggested class activities. (MSE)