This document provides a detailed lesson plan for a 22-period unit on computer mice. It includes objectives, teaching approaches, methodologies, activities and evaluations for each period. The unit teaches students about the similarities and differences between real mice and computer mice. It involves hands-on practice with using a mouse, as well as reading assignments and exercises on mouse functions like clicking, dragging and saving drawings in Microsoft Paint. Periods are dedicated to skills practice, question and answer sessions, reviews, and a final evaluation.