Articles

The Development of RBL-STEM Learning Materials to Improve Students’ Computational Thinking Skills in Solving Rainbow Vertex Antimagic Coloring Problems and It’s Application for Batik Motif Design

/in /by

Computational thinking is thinking process that is needed in formulating problems and solutions, so that these solutions can be effective information processing agents in solving problems. Indicators of computational thinking consist of problem decomposition, algorithmic thinking, pattern recognition, abstraction and generalization. To improve higher-order thinking skills, we apply RBL learning integrated with STEM approach and their aplication to batik matif design. To improve students’ thinking skills, it is necessary to develop tools that support the success of learning activities. The learning tools that have been developed meet the criteria of valid, practical, and effective. The validity score obtained on each device is 3.58 for the student assignment plan (RTM), 3.47 for the student worksheet (LKM), and 3.64 for the learning outcomes test (THB). The observation result of the learning implementation score was 3.72 with a percentage of 93%. In addition to being valid and practical, the material also meets the criteria for effectiveness. On average, 95% of students in this trial class are classified as complete students and the response from students is positive. Based on the test results, researchers got 23 students who scored above 60. This means that 82% of students in this class have completed and met one of the effectiveness criteria. Student response questionnaires also give more positive responses than negative responses.

The Development of RBL – STEM Learning Materials to Improve Student’s Conjecturing Thinking Skills in Solving Rainbow Vertex Antimagic Coloring Promblems and it’s Application to Supply Chain Management Using ANN

/in /by

One of the educational developments in recent years has to do with STEM. The term STEM (Science, Technology, Engineering, and mathematics) is one approach in the learning process that is quite influential to be used today. STEM-based learning focuses students on solving problems in everyday life by combining the four fields of science: science, technology, engineering, and mathematics. The resulting device has met the validity criterion of 3.25≤ Va<4; the suggestion from validators does not change the device as a whole, but only a tiny part. The validity score obtained in each device is 3.6 for RTM (valid), 3.5 for LKM (practical), and 3.6 for THB (practical). This math learning tool also meets the criteria of practicality, and the practitioner’s advice does not change the device as a whole but only a tiny part. In addition to being valid and practical, the device also meets the criteria of effectiveness. The average student in this trial class is classified as a complete student, and the response from students is positive. Based on the test results, researchers found 16 students with 70% presentations who scored above 60.