This manual investigates the fundamental operations and practical applications of the Lotus 1-2-3 spreadsheet software within a secondary education curriculum. The authors, Bmr-Delmar and Lotus Bmr, provide a structured pedagogical framework designed to transition students from basic data entry to complex formulaic analysis. By utilizing a step-by-step instructional methodology, the text aims to standardize the learning process for high school students navigating early spreadsheet technology.

Educators and technical instructors frequently cite this manual as a foundational resource for introducing spreadsheet logic to students in a classroom setting. The text is noted for its clear, procedural approach to software instruction, making it a standard reference for high school computer literacy courses.