Penelitian ini bertujuan untuk untuk meningkatkan hasil belajar siswa menggunakan media U-Mat dan Jam Trigonometri ditinjau dari gaya kognitif siswa. Pelaksanaan pembelajaran media U-Mat dan Jam Trignometri terdiri dari enam fase yaitu kegiatan memotivasi siswa, menyajikan informasi, mengorganisasi siswa ke dalam kelompok belajar (terdiri dari 1 siswa FI, dan FD), membimbing kelompok belajar siswa, evaluasi, serta memberikan penghargaan. Jenis penelitian yang digunakan adalah Penelitian Tindakan Kelas. Penelitian ini dilaksanakan di SMAN 1 Nglames dengan subjek siswa kelas X MIA 3 yang berjumlah 32 siswa. Teknik pengumpulan data menggunakan metode tes, obeservasi, dan wawancara. Analisis data yang digunakan adalah melalui teknik deskriptif analitik. Hasil penelitian menunjukkan bahwa adanya peningkatan hasil belajar sebesar 37, 505%.

One of the thinking skills can be developed through mathematics education is critical thinking. Teacher may  take one of the steps to stimulate critical thinking skills by means of CCT (Cards of Critical Thinking) learning media. CCT is a learning media in the form of question cards; containing critical thinking questions like "is there something wrong, why it is wrong, and what should be done to correct the mistakes". The questions in this CCT met the criteria and indicators of critical thinking, namely FRISCO (Focus, Reason, Inference, Situation, Clarity, and Overview). The CCT is applied through the PBL (Problem Based Learning) approach.  The main purpose of this literacy study is to describe teaching and learning steps through the application of CCT (Cards of Critical Thinking) to improve students' critical thinking skills.

<p>This study aimed to improve creative thinking ability of students through REACT learning strategy approach in probability topics. REACT learning strategy approach has 5 stages, consist of Relating, Experiencing, Applying, Cooperating, and Transferring. The type of research is Classroom Action Research. The study population was twelfth grade students of SMAN 1 Nglames, and the sample used was one class of XII MIA 2 consist of 32 students. The data collection technique uses (1) test scores of students' creative thinking skills which include the initial and final tests, (2) the results of observations during the learning process, (3) the results of interviews with the subject of the interview. Data were analyzed through descriptive analytic techniques. Based on the data analysis, it was found that each component of creative thinking had the following percentage increase in fluency (5.22%), flexibility (8.81%), originality (21.57%), and elaboration (29.29%). The results showed that REACT learning through three stages, namely the initial stage, the core (Relating, Experiencing, Applying, Cooperating, and Transferring), and the closure can improve students' creative thinking skills, especially in the probability topics.</p>