Malaysia Ministry of Education has put critical thinking skills elements into one of the six aspirations that pupils need to achieve. This was a turning point that teaching methods should be transformed. Therefore, innovation of teaching methods needs to be done. One of the strategies suggested is adventure-based learning (ABL). The main objective of this study is to examine the impact of ABL methods in the teaching of Basic Statistics on critical thinking skills. This study uses a quantitative approach with quasi experimental pre and post design. Only one group of students is formed. The study was based on the cluster sampling method and involving the semester two students of the Preparation Programme of Teaching Bachelor (PPTB). Instruments used are modules of adventure-based teaching methods and critical thinking skills tests. The findings of this study are to prove that this adventure-based learning can be used as an alternative method to assist the lecturers of the Teacher Education Institute to produce credible graduates. It helps lecturers apply the 21st century learning method in their teaching and learning.