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Siti Ramdiah Pengarang Adelia Widiyanti Pengarang Irfan Marzuki Pengarang Nyoto Pujiandi Pengarang Budhi Utami Pengarang Agus Muji Santoso Pengarang

Metacognitive is a person's ability to learn and determine relevant knowledge, set learning strategies and self-knowledge. Based on the results of observations, learning at SMA Negeri 1 Kediri has not used LKPD on the immune system material which can improve students' metacognition. This study aims to produce teaching materials in the form of ASICC-based worksheets on immune system material that are valid, practical and effective. The research subjects were class XI MIPA F of SMA Negeri 1 Kediri. The research method used is Research and Development through a development studies approach with two main stages, namely the preliminary study stage and the prototype stage. Data collection techniques were carried out using questionnaires and tests. The sample in the study was 32 students of XI MIPA F. From the results of this study, the following conclusions were obtained: (1) produce valid worksheets based on input and suggestions from the validator. (2) produce LKPDs that are practical as seen from the results of the 98% validator and smallscale and field-scale trials. So the LKPD developed was declared valid and practical based on the validator's comments and suggestions as well as small-scale and fieldscale trials.