Student's critical thinking and their learning result depend on learning design and student's activity. Most students use their spare time with playing game. Students are more challenged by the difficulty in playing game rather than facing the difficulty in understanding the lesson. This phenomenon is the basic reason of the researchers to develop a game that has the essence of the subject matter, namely Chemistry Board Game (CBG) or we can call it with Al Chemist Knight. This research aims to develop a suitable digital game based on android system. In this research media was used to improve the cognitive learning and critical thinking. It also has purpose to evaluate the response of learners in learning chemistry through alkane derived compound topic. The development of this game was adapted from the procedure of game development process in mobile 3D presentation. The collection of evaluation data model applied was pre test and post test in trial class. The result showed that in the pretest the learning result average was 34.35 with classical target of 5%. While the posttest learning result average was 80.51 with classical target of 85%. The n-gain factor was 0.703. Based on the result of the students questionnaire data analysis, 3.025 of students responded positively to the implementation of CBG. A CBG media makes an assessment of critical thinking, in which the indicator of critical thinking which are focusing on questions get 3,1 point, giving arguments get 2.95, asking and answering questions get 3.0, making decision get 3.05, and the average score of critical thinking indicator is 3.025 which belongs to good category. Based on the students' response questionnaire, we get the average score of 3.3 or 82.5% which is classified in good category.

The challenge of education entering the 21st century in the era of the industrial revolution 4.0 is expected to get graduates who are competent in utilizing ICT but also competent in developing critical thinking skills. This research aims to develop digital book based on local wisdom to improve critical thinking skills. This research includes Research and Development (R&D) research using ADDIE (Analysis, Design, Development, Implementation, and Evaluation) models. Data analysis techniques used in this study include descriptive data analysis related to the validity and response of users, while to determine the effectiveness of the product used the N-gain test. The results show (1) the developed digital book has valid criteria regarding aspects of the material, presentation, and language (2) students and teachers provide responses to the local wisdom digital book used in learning with response criteria strongly agree (3) assessment results Students' critical thinking skills show improvement with high N-Gain grades. The developed local wisdom digital book is suitable to be used as an alternative source of learning additive material in natural science learning in the face of the 21st century and the industrial revolution 4.0.

<p class="Abstract"><span>The challenges of education in the era of the industrial revolution include disruption 4.0, 21st-century skills, globalization, and global competition. Chemistry is a subject that needs to be developed in order to improve the educational system in the era of disruption. The purpose of this research is to identify and analyze the needs of the media-based chemistry study ICT at grade X redox materials in State Senior Highschool 8 Semarang during the disruption. The method used in this research is a descriptive qualitative method which consists of the study of literature and the study of the field. Method of data collection is done through observation, question form, documentation, interview teachers, as well as interview students. This research instrument consisting of a sheet of observation, question form, and sheet interview. The results showed that chemical-based learning media limited ICT in State Senior Highschool 8 Semarang redox materials especially in class X. That is because of the teacher's difficulty in innovating to develop learning media chemistry-based ICT and lack of student understanding and literacy in the study of chemical materials. Teachers play an important role in order to educate the students towards the era of disruption. In this era of chemical subjects not only taught students with literacy (reading, writing, math) but the need for a new form of literacy the literacy data, technology, and human resources in order to overcome learning difficulties and improving students learning outcomes for better value.</span></p>

This study aims to analyze the effect of applying problem-based learning with a STEM approach integrated with local culture (STEM-PBL-local culture) on improving creative thinking and problem-solving skills and determine the relationship between creative thinking and problem-solving skills. This research is an experimental study with a pretest-posttest non-equivalent control group design. A total of 72 prospective teachers who attended introductory chemistry courses at teacher education institutions were selected by purposive sampling. The test instrument is validated open-ended questions. Data analysis used an independent t-test. Pearson's product-moment correlation test is used to determine the relationship between problem-solving and creative thinking skills. The results show significant differences between the experimental and control groups. Students in the experimental group who received STEM-PBL-local culture experienced an improvement in creative thinking and problem-solving skills in the medium category, while the control group experienced an improvement in the low category. The Pearson product-moment correlation test shows that creative thinking and problem-solving skills have a significant relationship with a high level of correlation.

This research aims to determine the effectiveness guided inquiry learning based of contextual to improve chemistry literacy ability of students. This is an experimental research with pretest-posttest control group design and cluster random sampling as sampling techniques. The samples of this research are two different classes of X MIPA. The ability of chemistry literacy is tested using chemistry literacy test and questionnaire. Data analysis uses T-test, N-gain, classical learning pass, and questionnaire data descriptive analysis. The result of this research provided average score of posttest of chemistry students literacy of experiment group 72.86 and 63.42 for control group. Classical learning pass of experiment group is 78.57% and control group is 38.71%. N-gain analysis result provided the ability of chemistry literacy in every aspect of experiment group is better than control group. T-test result are tcount 3.66 and is bigger than ttable 2.00, it means that the ability of chemistry literacy of students in experiment group is better than the one in control group. Questionnaire analysis result provided around 68% in good category. Based on research results, it can be concluded that by using guided inquiry learning based of contextual, students’ chemistry literacy ability is improved significantly.