The purposes of this study were to study the results of the active learning approach on percentage lesson of Prathomsuksa 5 students intended to; 1) study about the achievement oflearning ;
2) study students’ learning progression and 3) investigate the satisfaction levels  . The target population was 14 Prathomsuksa 5 students from Ban Nonsoong School, Khaem sub-district, Uthumphornphisai district, Sisaket province during the second semester of the 2020 academic year. The instruments used in this research were 1) active leaning lesson plan 2) achievement tests 3) satisfaction survey form on percentage lesson for Prathomsuksa 5 students. The Statistics used in this study were descriptive statistics; mean, percentages, standard deviation and effectiveness index.

            The results of the study were as follows: 1) Prathomsuksa 5 students had the pretest mean score at 11.36 or 37.87 percent and the posttest mean score at 17.43 or 58.10 percent. The posttest mean score was higher than 50 percent and increase 20.24 percent from total score. 2) Mathematics’ Learning progression of Prathomsuksa 5 students after using active learning approach on percentage lesson was higher 10-80 percent and mean score was higher at 33 percent. There were 6 students had learning progression score at 50 - 80 percent, 4 learning disability students had learning progression score at 10 - 16 percent and 4 students   had learning progression score at 18 - 33 percent. 3) The students’ satisfaction after learning with active learning approach on percentage lesson was at high level ( = 3.93, = 0.68) and the satisfactions of each aspect, such as teaching ( = 3.84, = 1.01), teacher ( = 4.13, = 0.96), instructional media( = 3.98, = 1.05) and measurement and assessment( = 3.68, = 1.04) were at high level.