PENGEMBANGAN LKPD BERBASIS IDEAL PROBLEM SOLVING PADA MATERI LARUTAN PENYANGGA UNTUK MELATIHKAN KETERAMPILAN PEMECAHAN MASALAH

Development of IDEAL Problem Solving-Based Worksheet In Buffer Solution Materials to Train Problem Solving Skills

Tujuan dari penelitian ini adalah mendeskripsikan pengembangan LKPD berbasis IDEAL Problem Solving pada materi larutan penyangga untuk melatihkan keterampilan pemecahan masalah yang layak digunakan. Kelayakan ditinjau dari aspek validitas, kepraktisan, dan keefektifan. Penelitian telah dilakukan pada 13 peserta didik kelas XII MIPA 1 di SMAN 1 Tulungagung. Metode penelitan yang digunakan adalah Research and Development (R&D) dimana data yang diperoleh dianalisis secara kuantitatif. Penelitian ini menggunakan instrumen berupa lembar validasi, angket respon peserta didik, dan lembar soal pretest-postest. Uji-t sampel berpasangan digunakan untuk menganalisis data dari tes keterampilan pemecahan masalah. Hasil penelitian menunjukkan LKPD dianggap valid dengan persentase validitas isi 87% dan aspek validitas konstruk yang terdiri atas kriteria penyajian, kegrafikan, dan kebahasaan masing-masing memperoleh 90%, 88%, dan 90%. Berdasarkan kepraktisannya, kriteria isi memperoleh persentase respon sebesar 82,03%, kriteria penyajian 80,75%, kriteria kegrafikan 92,3%, dan kriteria kebahasaan memeperoleh 88,45%. Terdapat pengaruh yang bermakna dari penggunaan LKPD berbasis IDEAL Problem Solving terhadap meningkatnya nilai pre-test dan post-test peserta didik sehingga LKPD yang dikembangkan efektif untuk digunakan

The purpose of this research is to describe the development of IDEAL Problem Solving worksheets to practice problem solving skills on suitable buffer solution material based on its feasibility. Feasibility in terms of validity, practicality, and effectiveness. The research was conducted on 13 students of class XII MIPA 1 at SMAN 1 Tulungagung. The research method used is Research and Development (R & D) where the data obtained is analyzed quantitatively. This study used instruments in the form of validation sheets, student response questionnaires, and pre-test post-test sheets. The paired sample t-test was used to analyze data from the problem ability test. The results showed that LKPD was considered valid with a percentage of content validity of 87% and aspects of construct validity consisting of presentation, graphic, and language criteria obtained respectively 90%, 88%, and 90%. Based on its practicality, the content criteria obtained a response proportion of 82.03%, the criteria for  the presentation of the criteria were 80.75%, the graphic criteria were 92.3%, and the criteria for language were 88.45%. The influential effect of using LKPD based on IDEAL Problem Solving on the pre-test and post-test scores of students so that the developed LKPD is effective for use.