The purpose of this study was to determine the increase in student motivation and learning outcomes by implementing E-LKPD based on Project Based Learning (PjBL) on the respiratory system material in humans in online learning in class VIII-B of SMP Negeri 3 Tarutung T.P. 2020/2021. The research method used is Classroom Action Research (CAR). This research was conducted in 2 cycles. The results of the student learning motivation questionnaire in the first cycle were 33.3% and the second cycle was 62.5% in the high category. Student learning outcomes in the first cycle 58.3% complete learning and 41.6% students do not complete learning. Whereas in the second cycle 87.5% completed learning and 18.5% did not complete the study. Thus it can be concluded that the application of PjBL-based E-LKPD on respiratory system materials in humans in online learning in class VIII-B SMP Negeri 3 Tarutung T.P. 2020/2021 can increase student motivation and learning outcomes

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The post-millennial generation or currently known as the Z generation, is the generation born in the 2000s, the future generation born in the Internet age. This post-millennial generation does not like rigid rules, tends to think creatively and openly and is very easy to comment on. An important point in dealing with the post-millennial generation by providing specific direction for understanding ethics in social life. In the learning process, post millennial generation has visual characteristics, tries and sees the results of the process, wants the teacher as a facilitator, learning starts with "how", and is very easy to get information / knowledge. This is a challenge in determining the right learning strategy for them. With the problem-based learning method it is expected that students / vocational high school (SMK) students will be able to create something different to produce rewards in the form of money as well as personal satisfaction and freedom. Students are required to understand the importance of maintaining health by maintaining and protecting food hygiene, through controlling environmental factors that can or can cause illness and health problems.