This research aims to determine the influence of the Problem Based Learning Model on Students' Critical Thinking Ability on Ecosystem Material for Class X Students of State High School 2 Gowa. This type of research uses a quasi-experimental type of research or also called quasi-experiment with a "random pretest posttest control group" design model. There are two data collection techniques in this research, namely, test and non-test, then the data collected is analyzed using descriptive analysis and inferential test analysis. The research results show that the average critical thinking ability students in the experimental class who were taught using the Problem Based Learning learning model were in the very good category with an average score of 78.52 and students' critical thinking abilities, while in the control class who were taught using the lecture method were adequate with an average score 52.55. Inferential analysis in hypothesis testing shows significant results with a sig value of 0.000 > 0.05 so that there is an influence of the Problem Based Learning learning model on students' critical thinking abilities in ecosystem material. This is also reinforced by the results of observations regarding student activity increasing.

This paper explains the Deviations of Ma'had Al-Zaytun's Teachings Against Islamic Law, where the activity is in a ma'had or pondok in Indramayu, Central Java. During the leadership of Prof. Dr. KH. Abdusallam Rasyidi Panji Gumilang has recently reaped a lot of controversy because the teachings applied at the education center are contrary to Islamic religious laws or teachings, such as the prayer rows that are spaced apart and the mixing of male and female rows, Hajj can be carried out in Indramayu, adheres to Bung Karno's and Ma'had's understandings also say that sins can be redeemed with money. It also describes rebuttals regarding teachings in Al-Zaytun which are considered deviant and far from Islamic values ​​and law. to discuss related to deviant teachings in ma'had Al-Zaytun that are contrary to Islamic religious law, and the author will also look for what are the factors that underlie the ma'had carrying out teachings that are not in accordance with religious law or Islamic Shari'a which should.