media pembelajaran yang digunakan siswa di SMA Negeri 1 Krembung sangat beragam seperti LCD, PPT, video, modul, buku paket dan UKBM. namun pada kenyataannya penggunaan media kurang maksimal karena guru hanya memberikan peserta didik lembar kerja berupa UKBM. soal yang terdapat pada lembar kerja tersebut kurang mengasah kemampuan peserta didik untuk berpikir kritis dan lembar kerja tersebut dikemas secara monoton dan gradasi warna yang kurang menarik siswa menjadi salah satu penyebab kurang tertariknya peserta didik pada mata pelajaran ekonomi. sehingga dibutuhkan inovasi terbaru dengan mengmbangkan LKPD berbasis problem based learning. penelitian ini bertujuan untuk mengetahui kelayakan media, keterampilan berpikir kritis siswa, dan respon siswa. jenis penelitian yang digunakan yaitu research and development dengan model pengembangan 4D Thiagarajan yang terdiri dari define, desain, development, dan dissemination. pengumpulan data diperoleh dari hasil validasi untuk mengetahui kelayakan media, untuk mengetahui keterampilan berpikir kritis dan respon siswa terhadap media LKPD. penelitian ini menunjukkan bahwa hasil validasi kelayakan media pada seluruh aspek memeroleh rata-rata presentase sebesar 87,38. untuk hasil tes keterampilan berpikir kritis memeroleh skor rata-rata sebesar 84,06. sedangkan untuk hasil respon siswa pada seluruh aspek memeroleh hasil rata-rata presentase sebesar 90,76. hal ini menunjukkan bahwa media pembelajaran LKPD berbasis problem based learning sangat layak digunakan.
kata kunci: media pembelajaran, LKPD, problem based learning
media of learning used by students of SMAN 1 Krembung are very diverse such as LCD, PPT, videos, modules, textbooks, and UKBM. however, the fact shows that media usage is not optimal because the teachers only give students worksheets in the form of UKBM. the questions provided in the worksheets seem not qualified to sharpen the ability of students to think critically and the worksheets are enclosed monotone with colorless gradations which become the reasons of students lack of interest on economic subject. therefore, the newest innovation is needed by developing LKPD learning media based on problem based learning. this study aims to determine the feasibility of the media, students critical thinking skills, adn student responses. the type of study used is research and development with the Thiagarajan 4D development model consisting of define, design, development, and dissemination. data collection is obtained from the results of validation to determine the feasibility of the media, students critical thinking skills, and student responses to the LKPD media. this study reveals that the result of the validation of media feasibility in all aspects gains an average percentage of 87,38. for the result of the students critical thinking skill test obtains an average score of 84,06. while the result of student responses in all aspects attains an average percentage of 90,76. these results show that the learning media of LKPD based on problem based learning is very feasible to use.
keywordds: learning media, LKPD, problem based learning