The Studying of Chemistry Learning Achievement in Bohr’s Theory of Hydrogen Atom for Grade 10 Student by Using Kwdl Learning Techniques

Abstract

          During the chemistry class, many students confronted with the solving chemical calculation problems because there were many analysis steps and incomprehensible teaching methods. The researcher applied the KWDL technique to teach chemical calculation. The objectives of this research were 1) to design lessons and exercises on Bohr's theory of hydrogen atom and 2) to study a chemistry learning achievement. The instruments used for gathering data consisted of: 1) the learning management plans 2) the lessons and exercises, and 3) the achievement test based on criteria set at 60 percent. The subjects consisted of 50 students of grade 10 students in science - mathematics major of 1^st Semester, academic year 2020 at Wat Phrasrimahadhat Secondary Demonstration School, Phranakhon Rajabhat University. The data were analyzed by the efficiency (E₁/E₂) of lessons and exercises that set efficiency at 60/60 and using t-Test for One-Sample to test the research hypothesis.
          The research results revealed that:
          1. The efficiency of lessons and exercises on Bohr's theory of hydrogen atom was at 69.79/68.80 that higher than the specified criterion as 60/60.
          2. The grade 10 students studying Bohr's theory of hydrogen atom by using the KWDL learning technique had chemistry learning achievement 68.80 percent higher than 60 percent criteria, with statistically significant at .05 level.