This research aimed 1) to improve the English reading comprehension skill for grade XI students at Maryvit School, Chonburi Province by using active learning based on MIAP Learning model 2) to evaluate students' satisfaction towards active learning based on MIAP model. The Sample groups of the research were 20 of grade XI students at Maryvit School, Chonburi Province. Research instruments include 1) lesson plan using active learning based on MIAP model 2) four multiple-choices test with 30 items, and 3) a satisfaction test with the lesson package with 10 items. The statistics used for the data analysis were: Mean (  ), Standard Deviation (S.D.), and t-test.

 The research results were found that 1) The effectiveness of the lessons using active learning (MIAP model) of 20 students of Grade XI students at Maryvit School, Chonburi Province was 83.75/89.50, higher than the set criteria of 80/80.       2) For the learning achievement of students who study with the lessons between the scores before and after class, the mean score from taking the pre-test was 17.80 and the standard deviation was 1.40., and the mean score after class was 26.85 and the standard deviation was 1.42. This means a learning achievement score with the lessons for improving reading comprehension skill after class were significantly higher than that of pre-test at the level of 0.05. 3) The satisfaction of students with the MIAP model in overall, it was at a high level (X = 3.91). Considering in details, it was found that there were all aspects rated in the high levels.

This research aimed 1) to improve the English reading comprehension skill for grade XI students at Maryvit School, Chonburi Province by using active learning based on MIAP Learning model 2) to evaluate students' satisfaction towards active learning based on MIAP model. The Sample groups of the research were 20 of grade XI students at Maryvit School, Chonburi Province. Research instruments include 1) lesson plan using active learning based on MIAP model 2) four multiple-choices test with 30 items, and 3) a satisfaction test with the lesson package with 10 items. The statistics used for the data analysis were: Mean (  ), Standard Deviation (S.D.), and t-test.

 The research results were found that 1) The effectiveness of the lessons using active learning (MIAP model) of 20 students of Grade XI students at Maryvit School, Chonburi Province was 83.75/89.50, higher than the set criteria of 80/80.       2) For the learning achievement of students who study with the lessons between the scores before and after class, the mean score from taking the pre-test was 17.80 and the standard deviation was 1.40., and the mean score after class was 26.85 and the standard deviation was 1.42. This means a learning achievement score with the