This research aims to increase interest in learning and critical thinking of class The background to this research is because students' low interest in learning, especially in learning mathematics. In the learning process, a student's interest in learning plays an important role in the teaching and learning process, because if students have low interest in learning, it will be difficult for them to receive knowledge from the teacher, so that learning outcomes will be less effective. This research uses the Classroom Action research method (PTK) which consists of two cycles. The techniques used for data collection are: planning, implementing actions, observing and evaluating and reflecting. Before that, initial observations were carried out in order to find out information or characteristics of students. The results of the research show that the PBL type cooperative learning model was applied to matrix material for class XI students at SMA Negeri 21 Surabaya. This can be seen from the increase in implementation results, observation and reflection.  Students' learning activities experienced a significant increase in cycle two compared to cycle one. By learning using the PBL method, it is possible for students to more easily understand the material because it relates to problems around them and with discussions students can work together and help each other if they experience problems. Apart from that, this method can also help develop their critical thinking and communication skills.
 

This study aims to increase motivation to learn mathematics by using  the Culturally Responsive Teaching (CRT) approach assisted  by Quizizz Paper Mode on class X exponential material at SMAN 21 Surabaya. Learning motivation is one of the important factors in achieving students' academic success. The low motivation of students to learn in mathematics subjects is the background of this research. This type of research is Classroom Action Research (PTK) which is carried out during 2 learning cycles. The data collection techniques used are observation and questionnaires. The results of the study show that the application of  the Culturally Responsive Teaching (CRT) approach assisted by Quizizz Paper Mode can increase students' motivation to learn mathematics. The increase can be seen from the increase in the percentage of students' learning motivation in the first cycle of 80.9% with a high category and the percentage of students' learning motivation in the second cycle of 90.93% with a very high category. The result of the increase in learning motivation from cycle I to cycle II was 10.03%.

This study aims to improve students' mathematics learning outcomes through the implementation of cooperative learning model using the Think Pair Share (TPS) technique. The subjects of the study were the students of class VII-A at SMPN 3 Surabaya. This Classroom Action Research (CAR) was conducted in two cycles, each consisting of planning, implementation, observation, and reflection stages. Data were collected through tests, namely formative tests and post-tests. The results showed a significant improvement in students' mathematics learning outcomes after the application of the Think Pair Share technique. In the first cycle, the average student scores increased significantly compared to before the intervention, with even greater improvements observed in the second cycle. Besides improving learning outcomes, the application of the Think Pair Share technique also had a positive impact on student participation and interaction during the learning process. Students became more active in discussions and helped each other understand the lesson material. Therefore, the Think Pair Share technique has proven effective in enhancing the mathematics learning outcomes of students in class VII-A at SMPN 3 Surabaya.
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The activity of writing scientific papers, especially scientific articles, is one of the activities that must be done by professional teachers. Apart from being a professional demand, writing scientific papers for teachers is also a form of scientific implementation and dissemination to the community. The purpose of this training activity is expected to improve the ability to write scientific papers, especially scientific articles for teachers. The method of implementing this training is divided into three stages. First, the presentation of the material, the two participants were divided into groups to discuss things that could be raised as the theme of writing scientific articles, the third practice in groups with the guidance of lecturers of the PPKn study program, Faculty of Teacher Training, PGRI Adi Buana University, Surabaya, and assistance to complete activities synchronously and asynchronously. This training resulted in 9 scientific articles that have been worked on by teacher groups, three of which are the results of the implementation of classroom action research (PTK) that has been previously carried out by teachers, and there are two participant articles that have been successfully uploaded to the national online journal Pacivic Universitas PGRI Adi Buana Surabaya.

Pelaksanaan pemberdayaan masyarakat melalui kegiatan pengelolaan sampah plastik menjadi produk berupa paving block, serta sebagai prospek bisnis dikalangan menengah kebawah. Tujuan utama dalam kegiatan ini yaitu masyarakat Desa Kota Agung, Kec. Tegineneng, Kab. Pesawaran, Lampung, dimana kegiatan ini dilakukan pada tanggal 24 januari 2023, yang dihadiri oleh 40 orang. Metode penyampaian yang dilakukan yaitu berupa penyuluhan mengenai sampah dan pendampingan cara pembuatan dengan memperlihatkan produk jadi dan melalui video sebagai media pembelajaran dalam pembuatan paving block dari sampah plastik. Selama pemaparan tentang proses pembuatan, respon masyarakat sangat antusias. Hal tersebut dilihat dari masyarakat yang banyak bertanya bahkan mencatat tentang cara pembuatan paving block dikarenakan proses pembuatan yang sangat mudah dan dapat mengurangi sampah yang ada disekitar untuk diolah menjadi produk yang bermanfaat dan bernilai jual.