การศึกษาผลสัมฤทธิ์ทางการเรียนและทักษะการแก้ปัญหาหน่วยการเรียนรู้ตรรกศาสตร์ สำหรับชั้นมัธยมศึกษาปีที่ 4 โดยการจัดกิจกรรมการเรียนรู้แบบ KWDL ร่วมกับแบบฝึกทักษะ

The purposes of this research were: 1) To develop learning management plans with KWDL learning activities and skill practice in logic unit for Mattayomsuksa 4 students to be efficient according to the criterion of 75/75; 2) To compare the academic achievement of logic unit for Mattayomsuksa 4 students including before and after using KWDL learning activities with skill practice; and 3) To compare problem solving skills in logic unit for Mattayomsuksa 4 students including before and after using KWDL learning management and skill practice.  The sample consisted of 20 Mattayomsuksa 4 students in Phulaenka Wittayayon School studying in semester 2 of academic year 2019 obtained by simple random sampling. The research instruments were: 1) eight learning management plans scheduled 16 hours; 2) thirty items of objective achievement tests with 4 choices of each item. Each item had its difficulty value between 0.30-0.80; discrimination value between 0.20-0.47; and reliability value at 0.75; and 3) two items of subjective test on problem solving skills with the reliability value at 0.88. The statistics used were percentage, mean, standard deviation and t-test dependent sample. The results of the research were as the followings: 1) Learning management plan with KWDL learning activities and skill practice in logic unit for Mattayomsuksa 4 students had its efficiency according to E1 / E2 at 83.5 / 80.33 that was higher than the specified criteria. 2) Logic unit learning achievement for Mattayomsuksa 4 students by using KWDL learning activities with skill practice was found that post learning was higher than pre learning with statistical significance at the level of .05 3) Problem solving skill in learning by using KWDL learning management with skills practice in logic unit of Mattayomsuksa 4 was found that post-learning was higher than pre-learning with statistical significance at the level of .05