Abstract:
The development of complex problem-solving skills in chemical equilibrium using the SSCS technique
has the following objectives: 1) to enhance complex problem-solving skills with the SSCS technique and 2)
to examine the satisfaction of students with learning through the SSCS technique. The study group consisted
of 47 Grade 11 students in science - mathematics major, academic year 2022 at Wat Phrasrimahadhat
Secondary Demonstration School, Phranakhon Rajabhat University. The study population was limited due
to the availability of only one classroom. The tools used included: 1) A learning management plan for
solving complex problems related to chemical equilibrium using the SSCS technique, with a content validity
index of 1.00, 2) A test measuring complex problem-solving skills consisting of six essay questions, each with
a content validity index of 1.00. The difficulty ranged from 0.54 to 0.75, and the discriminant power of each
question ranged from 0.46 to 0.77. The overall reliability (Cronbach's alpha) of the test was 0.77. 3) A
satisfaction questionnaire on teaching and learning through the SSCS technique, with a reliability coefficient (Cronbach's alpha) of 0.76. Data analysis was conducted using the mean (μ) and percentage that the cutoff
score for proficiency was set at 70%, and the standard deviation (𝜎𝜎) of the test scores measuring complex
problem-solving skills.
Research revealed that:
1) The students scored an average of 71.56% in complex problem-solving skills, exceeding the set
criteria (μ=21.47, 𝜎𝜎 =7.37).
2) Students expressed the highest satisfaction with learning through the SSCS technique (μ=4.50,
𝜎𝜎=0.50).