This document outlines the research design for a study examining how to enhance secondary school students' understanding of the relationship between lighting and tones in painting. The objectives are to identify factors that influence students' use of shades in paintings, understand influences on their grasp of light and shade relationships, and identify ways to improve this understanding, including determining the effectiveness of a "Magic Box." The study will employ an experimental research design using cluster simple random sampling to select one class, with data collected through observation and interviews.