DEVELOPMENT OF ENGLISH COMMUNICATION SKILLS ON THE TOPIC “AT THE RESTAURANT” FOR GRADE 8 STUDENTS USING THE EXPLICIT INSTRUCTION MODEL AND SIMULATION SCENARIOS

Abstract

This research aimed to 1) compare the English communication skills of Grade 8 students before and after implementing Explicit Instruction model and simulation scenarios, 2) compare the development of English Communication skills after the implementation of the Explicit Instruction model and simulation scenarios against the 70% criterion, and
3) investigate the students' satisfaction with the Explicit Instruction model and simulation scenarios. The sample comprised 37 students from Grade 8 at Surathampitak School in
the second semester of the 2024 academic year, selected through cluster sampling.
The research tools consisted of 1) five lesson plans, which were rated at the highest level of appropriateness with mean scores ranging from 4.64 to 4.68 and standard deviations ranging from 0.68 to 0.70. 2) An assessment tool for speaking skills demonstrated Item Objective Congruence (IOC) values between 0.67 and 1.00. and 3) A satisfaction measurement tool
for learning management, utilizing a 5-point Likert scale. The Index of Item Objective Congruence (IOC) values ranged from 0.67 to 1.00. Discriminative power values varied between 0.29 and 0.66. The overall reliability coefficient of the instrument was 0.86.
Data analysis employed means, percentages, standard deviations, dependent and
one-sample t-tests.

           Results indicated that:

           1) The comparative analysis of English communication skills regarding the topic
"At the Restaurant" for Grade 8 students, after the implementation of Explicit Instruction and simulation scenarios, revealed a significant improvement in students' speaking skills following the treatment, as evidenced by statistical analysis at the .05 level.

           2) The development of English communication skills related to the topic "At the Restaurant" for Grade 8 students after implementing Explicit Instruction and simulation scenarios showed that students' skills significantly exceeded the established threshold of 70%, with statistical significance at the .05 level.

           3) The satisfaction levels of Grade 8 students who received communication skills training in English on the topic "At the Restaurant" using an Explicit Instruction model and simulation scenarios were found to be at the highest level, with a mean score of 4.92 and
a standard deviation of 0.05.