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This study aims to know the characteristics of the jumping task which valid, practical and useful supporting junior high school students learning algebraic form operation . This research uses design research as a method. this research uses PMRI approach with avengers end game movie context and LSLC system. This study involved students who had low, medium, and high ablities in junior high school 18 Palembang. Data collection conducted through video recordings and photos to see the learning process in the classroom, jumping task, observation and interviews during the learning process with the students which is the subject of research. Research produced jumping task of learning addition and subtraction of algebraic form dealing with the avenger movie. Results of this research are valid and practical jumping tasks on mathematics topic algebraic form operation. Students with low performance have difficulties in solving jumping tasks. However, with LSLC system, students can answer the algebraic form operation jumping tasks.