1. College of Chemistry, South China Normal University, Guangzhou 510006, China; 2. Guangzhou Tieyi High School, Guangzhou 510450, China; 3. Teacher Training School of Panyu District, Guangzhou City, Guangzhou 511483, China; 4. Nanhai Senior High School, Foshan 528211, China
Abstract To further enhance the educational potential and literacy development supported by handheld technology, guide teachers in systematically implementing teaching based on handheld-technology digital experiments, and deepen students’ information literacy and evidential awareness, this study constructed the “Predict curve (P)-Data collection (D)-Explain curve (E)” teaching strategy (referred to as the PDE teaching strategy). It systematically elaborates on the theoretical model, core objectives, and key implementation elements of this strategy. Furthermore, using the high school chemistry case of “acetic acid ionization equilibrium”, it illustrates in detail how the strategy guides students through a complete inquiry process—from qualitative prediction to quantitative verification, and from data acquisition to evidence-based interpretation—thereby transforming experimental teaching from experience-based judgment to evidence-guided, in-depth inquiry.
QIAN Yang-Yi, HUANG Jia-Yi, CHEN Qian-Ming, WU Si-Min PENG Ying-Ying, WEN Jin-Ju. Experimental Teaching in the Era of Educational Digitalization: Construction and Practice of PDE Teaching Strategy[J]. Chinese Journal of Chemical Education, 2026, 47(9): 81-87.
