Mathematical Problem-Solving Ability on Arithmetic and Geometric Sequences  Using Skill Exercises Combined with SSCS Problem-Solving Model for grade  12 students

Authors

Mathematical problem-solving ability , arithmetic and geometric sequences , Mathematical problem-solving using the SSCS model

The objective of this research was to evaluate the mathematical problem

solving ability of Grade 12 students on arithmetic and geometric sequences after

participating in learning activities using practice exercise integrated with the SSCS

problem-solving model. The target group consisted of 18 Grade 12 students at

Kiettisack International School—KIS Luang Prabang, Luang Prabang Capital,

Luang Prabang Province in the academic year 2025-2026. The research

instruments consisted of five lesson plans integrated with practice exercises, and

a subjective mathematical problem-solving ability test which included five sub

tests with two questions each. The data analysis was performed using SPSS V.22.0

software to analyze the mean, standard deviation.

The finding were the students demonstrated mathematical problem-solving

ability in arithmetic and geometric sequences after participating in learning

activities using skill exercises combined with the SSCS problem-solving model.

Overall their performance was at a high level with an average score of 2.98 and

standardized 0.40 2). When considered by each aspect it was found that students

demonstrated the highest level of mathematical problem-solving ability in the ‘’

Solve:s’’ stage with an average score of 3.40 which is at the very good level. The

next highest was the ‘’ Search: S’’ stage with an average score 3.19 indicating a

good level of ability. The lowest average score was found in the fourth stage

‘’share:S’’ which involves exchanging ideas with an average score of 2.49

representing a moderate level of problem-solving ability. 3). When the average

scores of the five sub-tests- 2.73 2.83 3.05 3.00 and 3.28 respectively-were

compared it was found that the students showed improvement in their

mathematical problem-solving ability on the topic of arithmetic and geometric

sequences in a positive direction.