E-module reaction rate based guided inquiry has been developed using the Kvisoft flipbook maker. The e-module is developed using the Plomp development model which consists of three phases namely, the initial investigation phase, the prototype making phase, and the assessment phase. The results of the material validation obtained an average percentage for the content aspects, presentation aspects, language aspects, and graphics aspects are 87.46%, 86.63%, 95.80%, and 81.5% with a very valid category. While the result of media validation obtained an average percentage for the cover design aspect, the content design aspect and the display aspect are 100%, 97.80%, and 85.6% with a very valid category. The result of t h e u s e r response test obtained average percentages are 88.34% and 86.25% with a very good category. Based on the result of the validation and user response test can be concluded that the e-module reaction rate based guided inquiry is feasible to be used in the chemistry learning process as independent teaching material.

The purpose of this study is to determine the improvement of students' mathematical problem solving. The teaching materials consist of textbooks and LKPD. This type of research is quasi experiment (quasi-experimental) with the research population, namely grade VII students of Bengkulu City 19 Middle School. The results of this study include the use of outdoor learning teaching materials can improve students' mathematical problem solving abilities, with a n-Gain value of 0.50 (moderate).