The advancement of information and communication technology today is happening very rapidly. This greatly affects education in Indonesia. One example is the use of technology in the classroom. To facilitate learning systems using technology, teachers must innovate in media development. One of them uses E-LKPD as accessible online teaching material. This study aims to develop E-LKPD of rank material and contextually based root forms that are valid and practical. Researchers use the Research and Development (R&D) type of research using the ADDIE model. The ADDIE model has five stages, namely analysis, design, development, implementation, and evaluation. At the analysis stage, an analysis of the curriculum, materials, and student needs is carried out. The design stage is carried out by designing and preparing the E-LKPD based on the needs analysis. The development stage is carried out by developing E-LKPD by conducting E-LKPD validation tests by experts and practitioners. The implementation stage carries out research with trials in the field, and the evaluation stage carries out an assessment of the development product. The test subjects in this study were 10 students in grade IX at junior high school. The data collection techniques used are interviews and questionnaires. Descriptive analysis is used to process interview data while qualitative and quantitative descriptive analysis is used to process the results of validity and practicality questionnaires. The results of the validity of E-LKPD using the website Wizer.me meet the very valid criteria based on the percentage value of media validation of 94.17% and material validation of 89.84%. The practicality results of E-LKPD using the website Wizer.me meet very practical criteria based on the percentage value of student response questionnaires at 87.94% and the percentage value of teacher response questionnaires at 90.56%. Based on the results of validity and practicality, it was concluded that E-LKPD of rank material and contextual-based root forms were declared valid and practical for use as teaching materials in learning.

Topics
Information technology, Students, Educational institutions, Learning and learning models, Educational facilities, Curriculum, Teaching, Interviews
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