Penelitian ini bertujuan untuk mendeskripsikan tingkat kelayakan LKS berbasis Project Based Learning untuk melatihkan Entrepreneurship secara teoritis dan kelayakan secara empiris yang meliputi pengamatan aktivitas siswa, keterlaksanaan LKS, dan respons siswa. Jenis penelitian ini adalah penelitian pengembangan yang mengacu pada metode 4-D (tanpa tahap disseminate). Ujicoba terbatas dilakukan pada tanggal 16 November 2018  sampai dengan 26 November 2018 kepada 16 siswa kelas X IPA SMA Muhammadiyah 1 Taman Sidoarjo. Metode pengumpulan data menggunakan metode validasi, pengamatan aktivitas siswa, keterlaksanaan LKS, dan hasil angket respons siswa yang dianalisis secara deskriptif kualitatif. Hasil penelitian menunjukkan LKS berbasis Project Based Learning untuk melatihkan Entrepereneurship dinyatakan layak secara teoritis dan empiris. LKS berbasis berbasis Project Based Learning untuk melatihkan Entrepereneurship dinyatakan layak secara teoritis berdasarkan hasil validasi dengan persentase 86,34% dengan kriteria sangat layak. Lembar kerja siswa dinyatakan layak secara empiris berdasarkan hasil pengamatan aktivitas siswa sebesar  97,2%% , hasil keterlaksanaan LKS sebesar 93,38%, hasil keterbacaan LKS oleh siswa mendapatkan 94,64%,  hasil angket respons siswa terhadap Lembar kerja siswa sebesar 93,37%. Berdasarkan hasil tersebut, LKS berbasis Project Based Learning (PjBL) untuk melatihkan Entrepreneurship layak digunakan pada kegiatan pembelajaran.

 Kata Kunci: LKS, Project Based Learning (PjBL), Entrepreneurship, Daur ulang limbah. 

This study aims to describe the feasibility level of student worksheets based on Project Based Learning to train Entrepreneurship theoretically and empirically feasibly which includes observing student activity, implementation of student worksheets, and student responses. This type of research is development research that refers to the 4-D method (without disseminate stages). Limited trials are conducted on November 16, 2018 to November 26, 2018 to 16 students of class X IPA Muhammadiyah 1 High School in Taman Sidoarjo. Methods of data collection using the method of validation, observation of student activity, implementation of student worksheets, and the results of student response questionnaires which were analyzed qualitatively. The results of the study show that Student Worksheets based on Project Based Learning to train Entrepreneurship are declared theoretically and empirically feasible. Student worksheets based on Project Based Learning to train Entrepreneurship are declared theoretically feasible based on the results of validation with a percentage of 86.34% with very feasible criteria. Student worksheets are declared empirically feasible based on observations of student activities at 97.2 %%, results of implementation Student worksheets are 93.38%, readability of student worksheets by students get 94.64%, results of questionnaires student responses to worksheets students at 93.37%. Based on these results, student worksheets based on Project Based Learning (PjBL) to train Entrepreneurship are appropriate for use in learning activities.

Keywords : Student’s worksheet, Project Based Learning (PjBL), Entrepreneurship, Waste recycling.