Penelitian berjudul “Efektivitas Model Project Based Learning (PjBL) munggunakan strategi berdiferensiasi dalam pembelajaran teks negosiassi di kelas X SMK Model Patriot IV Ciawigebang”. Tujuan dari penelitian ini; (1) untuk mengetahui hasi belajar peserta didik kelas X TJKT 3 dan kelas X TJKT 4 di SMK Model Patriot IV Ciawigebang dalam pembelajaran teks negosiasi sebelum diberi perlakuan. (2) untuk mengetahui hasil belajar peserta didik kelas X TJKT 4 di SMK Model Patriot IV Ciawigebang dalam pembelajaran teks negosiasi setelah diberi perlakuan dengan model Project Based Learning (PjBL) menggunakan strategi berdiferensiasi. (3) untuk mengetahui efektivitas model pembelajaran Project Based Learning (PjBL) menggunakan strategi berdiferensiasi dalam pembelajaran teks negosiasi kelas X di SMK Model Patriot IV Ciawigebang. metode yang digunakan dalam penelitian ini adalah eksperimen dengan desain nonequivalent control group. Sampel dari penelitian ini adalah peserta didik kelas X yang dibagi menjadi dua kelompok yaitu kelas kontrol dan kelas eksperimen. Hasil penelitian ini menunjukan nilai gain 0.68 dengan presentase 68.36% yang artinya 0.68 berada di antara 0.3 ≤ g ≤ 0.7 maka karegori sedang dan presentase 56-75 dinyatakan cukup efektif,maka 68.36% dinyatakan cukup efektif.
Kata kunci: Efektifitas Pembelajaran, Eksperimen, Model pembelajaran, Project Based Learning (PjBL), Strategi Berdiferensiasi,

The research is entitled "The Effectiveness of the Project Based Learning (PjBL) Model using differentiated strategies in learning negotiation texts in class X of SMK Model Patriot IV Ciawigebang". The purpose of this study; (1) To find out the learning outcomes of students in class X TJKT 3 and class X TJKT 4 at SMK Model Patriot IV Ciawigebang in learning negotiation texts. (2) To find out the learning outcomes of class X TJKT 4 students at SMK Model Patriot IV Ciawigebang in learning negotiation texts after being taught with the Project Based Learning (PjBL) model using differentiated strategies. (3) To determine the effectiveness of the Project Based Learning (PjBL) learning model using differentiated strategies in learning class X negotiation texts at SMK Model Patriot IV Ciawigebang. The method used in this study is an experiment with a nonequivalent control group design. The sample of this study was class X students who were divided into two groups, namely the control class and the experimental class. The results of this study showed a gain value of 0.68 with a percentage of 68% which means that 0.68 is between 0.3 ≤ g ≤ 0.7, then the average rate and the percentage of 56-75 are declared quite effective, then 68% are declared quite effective.
Keywords: Differentiated Strategies, Experiment, Learning Effectiveness Learning model, Project Based Learning (PjBL).