The weak ability of students in analysing and solving learning problems that have an impact on chemistry learning outcomes that do not meet the expected standards of completeness. This study aims to improve students' ability to analyse and solve problems in learning the form of substances in CLC BLD LAMBIR students by applying creative problem solving. This research is a research conducted with 2 cycles, each cycle is conducted creative problem solving based learning on the research subject as many as 15 students of CLC BLD LAMBIR. The techniques used in data collection are test techniques and descriptive analysis. The results of the study at the observation stage students had an average score of only 71.07, in cycle 1 it became 77.93 and in cycle 2 it was 87.07. The completeness value of learning outcomes that shows the level of analysis and completion skills of students is at the observation stage (before making improvements) is 26.67%, cycle 1 is 60% and cycle 2 shows the level of student completeness is 100%. Creative Problem Solving-based learning can help students analyse and solve learning problems in the form of substances with a completeness value that is in accordance with the Minimum Completeness Requirements (MCR).
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