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The purpose of this research to produce Creative Problem Solving (CPS)-based LKPD that meet the criteria of validity, practicality and effectiveness to improve critical thinking skills in quadrilateral and triangle material. The research type is Research and Development (R&D) ADDIE model which Analysis, Design, Development, Implementation and Evaluation. Data collection techniques use observation, interviews, questionnaires and tests. The product test subjects were class VIII students at SMP Negeri 1 Patianrowo and SMP Negeri 2 Patianrowo. The results of the research according to expert assessment show that the teaching materials developed have valid criteria. This means that the teaching materials developed are suitable for use by students. The assessment based on the results of teacher and student response tests shows that the teaching materials developed meet the criteria of being very practical. This means that the teaching materials developed can be implemented in the mathematics learning process, especially in quadrilaterals and triangles. The posttest results show that there is a significant difference in critical thinking abilities between the control class and the experimental class. This means that the teaching materials developed have an effect on increasing students' critical thinking skills with the percentage of increase being at a very high effect, namely 80.2%. Based on this assessment, it can be concluded that the teaching materials developed have met the criteria for validity, practicality and effectiveness in improving critical thinking skills of student in quadrilateral and triangular material

This research aims to: 1) determine the process of developing teaching module, 2) determine the validity of teaching modules, 3) determine the practicality of teaching modules, and 4) determine the effectiveness of teaching modules. In general, the development of this CLT-based teaching module is to find out whether the taching module can minimize students’ mathematical anxiety.The research follows a development model, specifically the Plomp development model which consists of 5 phase, 1) preliminary phase, 2) design phase, 3) realization phase, 4) test, evaluation and revision phase, 5) implementation phase. The developed teaching module focuses on trigonometry material for phase E students at MAN Se-Tulungagung. Data collection methods include validation, objective observation, and questionnaires. Practicality data were obtained from teacher questionnaires, while effectiveness data were derived from students’ mathematical anxiety questionnaires. Based on data analysis, the following results were obtained: 1.) The validation score for the teaching module was 3.754, categorizing it as valid. 2.) The practicality score for the teaching module was 4.02, indicating high practicality. 3.) The teaching module effectively minimized mathematical anxiety, as evidenced by anxiety levels in experimental classes compared to control classes. Control classes using conventional learning showed higher anxiety levels, with MAN 3 Tulungagung at 2,89 (‘anxious’), MAN 2 Tulungagung at 2.615 (‘anxious’), and MAN 1 Tulungagung at 2.204 (‘anxious’). Meanwhile, experimental classes, after using the teaching module, showed lower anxiety levels: MAN 3 Tulungagung at 1.98 (‘moderate anxiety’), MAN 2 Tulungagung at 1.96 (‘moderate anxiety’), and MAN 1 Tulungagung at 1.44 (‘moderate anxiety’)

Background: Augmented Reality (AR) integrates virtual objects with the real world on smartphone screens, creating a seemingly seamless blend of both. Aim: This research aimed to explore the use of AR in teaching geometric solids to final-year elementary school students. An interactive tool, RA Solids, was employed, originating from a 2023 research experience in a 6th-grade class. Method: The study was conducted in a public school with students mostly classified as digital immigrants. The Didactic Engineering methodology was utilized for research. Result: The outcomes were positive, showing that the school environment was conducive to implementing the teaching and learning process of geometric solids using digital technology. Conclusion: The use of AR in education, specifically in teaching mathematics, demonstrates promising results in enhancing student engagement and understanding, particularly in the context of geometric solids.

Bonding is an abstract material and has a high level of difficulty. Most students have difficulty in determining the Lewis structure and valence electrons so that facilities are needed that support the learning process and are in accordance with the curriculum that emphasizes guided inquiry learning. The implementation of a learning can be supported by the existence of relevant learning facilities. One of the learning tools that can be used is teaching materials in the form of modules. Research and development aims to determine the feasibility and to investigate the response of students to chemistry learning modules based guided inquiry on chemical bonding material class X. This study uses the Research and Development (RD). Based on the validation of the results obtained material experts 85.26%, media expert results obtained 92.00% with products developed thus expressed very worthy to use. After validation of the product to expert lecturers and chemistry teachers, the product was tested on a small scale to 17 students. The students' responses were obtained with a percentage of 84.14% stated in the very feasible criteria, thus the module developed in the small-scale trial was included in the criteria very suitable for use in the learning process.

Abstrak Penelitian ini bertujuan untuk mendiskripsikan kesulitan-kesulitan apa yang dialami mahasiswa tadris matematika di UIN Sayyid Ali Rahmatullah Tulungagung dan untuk mengetahui faktor-faktor apa saja yang menyebabkan kesulitan mahasiswa dalam menyelesaikan soal integral. Jenis penelitian yang dilakukan yaitu penelitian kualitatif dengan pendekatan studi kasus. Penelitian kepada 38 mahasiswa jurusan tadris matematika semester 3, dengan pengambilan subjek didasarkan pada 3 mahasiswa yang melakukan kesalahan semua soal, 5 mahasiswa yang salah dua soal dan 2 mahasiswa yang benar semua soal. Pengumpulan data dilakukan dengan metode tes dan wawancara pada mahasiswa. Tes yang diberikan berbentuk tes uraian dengan materi integral. Teknik analisis data yang digunakan adalah deskriptif naratif dengan menggunakan model Miles dan Huberman. Hasil penelitian menunjukkan bahwa 30% mahasiswa melakukan kesalahan prinsip, dan 23% melakukan kesalahan operasional. Faktor penyebab terjadi kesalahan mahasiswa adalah tidak memahami konsep, prinsip integral tak tentu dan integral tentu secara baik, serta kurangnya memahami konsep materi prasyarat seperti konsep turunan, operasi aljabar dan kurang teliti dalam melakukan operasi penyelesaian soal. Temuan ini menunjukkan perlunya pengajar menekankan materi konsep integral dan memberikan inovasi serta strategi pembelajaran yang tepat. Kata kunci: Integral; Kesulitan mahasiswa; Pandemi covid-19. Abstract This study aims to describe the difficulties experienced by mathematics education students at UIN Sayyid Ali Rahmatullah Tulungagung and to find out what factors cause students' difficulties in solving integral problems. The type of research conducted is qualitative research with a case study approach. Research on 38 students majoring in mathematics tadris 3rd semester, with subject selection was based on 3 students who made mistakes in all the questions, 5 students who got two questions wrong and 2 students corrected all the questions. Data was collected by using the method of tests and interviews with students. The test given is in the form of a description test with indeterminate integral material. The data analysis technique used is a descriptive narrative using the Miles and Huberman model. The results showed that 30% of students made mistakes in principle, and 23% made operational errors. The factors that cause student errors are not understanding the concept, the principle of indeterminate integral and definite integral well, and the lack of understanding of prerequisite material concepts such as derivative concepts, algebraic operations, and lack of thoroughness in problem solving operations. This finding shows the need for teachers to emphasize integral concept material and provide innovations and appropriate learning strategies. Keywords: Integral; Student difficulty; Covid-19 pandemic

Cita-cita utama pemerintah menggunakan kurikulum K-13 adalah menciptakan generasi yang cerdas berpengatahuan, kompeten dan trampil. Studi ini bertujuan mendeskripsikan dan menganalisis keterampilan berpikir tingkat tinggi (HOTS) siswa madrasah tsanawiyah dalam pembelajaran matematika setelah diberlakukannya kurikulum K-13. Studi ini difokuskan pada TIMSS Assessment framework yang terdiri atas empat materi matematik yaitu bilangan, aljabar, geometri, data dan peluang. Dimensi kognitif yang diukur meliputi kemampuan penerapan dan penalaran. Data penelitian ini berasal dari studi literatur tentang penerapan kurikulum K-13 dan survey yang melibatkan sebanyak 1.317 siswa madrasah tsanawiyah dari tujuh kota di pulau Jawa. Sampel tersebut berasal dari 439 Madrasah Tsanawiyah DKI Jakarta, Bandung, Serang, Semarang, Yogyakarta, Malang dan Surabaya. Analisis inferensial untuk menguji perbedaan antar kelompok data menggunakan uji ANAVA satu jalur. Data dari survey dan studi literatur dianalisis melalui tahapan restatemen, deskripsi dan interpretasi. Hasil penelitian menunjukkan terdapat perbedaan yang signifikan tingkat keterampilan HOTS matematis siswa madrasah tsanawiyah. Hal ini mengacu pada hasil uji empiris menggunakan ANAVA satu jalur yang menunjukan nilai signifikansi perbedaan kemampuan HOTS matematis sebesar 0,048 < 0,05. Nilai rata-rata tertinggi untuk aspek penerapan diperoleh siswa madrasah Tsanawiyah Yogyakarta. Sedangkan untuk aspek penalaran nilai rata-rata tertinggi siswa dari Surabaya. Dua kemampuan HOTS tersebut masih tergolong rendah. Tulisan ini menyarankan perlunya penelitian lanjutan untuk melihat secara khusus penerapan kurikulum K-13 di madrasah untuk dimungkinkannya suatu analisis komparatif.

The fact that the low quality of learning and mathematics learning outcomes of students because the majority of math teachers still use the method of learning by way of lectures and assignments. In studying mathematics teachers should pay attention to the process of not only prioritize the achievement of learning results seen from UAS only. Therefore, the learning innovation is required. One of the innovative learning models is the Cycle Learning model. The Cycle Learning model is a student-centered learning model that can motivate students when learning, discussing, explaining, and developing. Thus, it can create an active learning atmosphere and not boring. By using media power point learning process becomes more fun. The research pattern used is quantitative approach and type of quasi-experimental research. The sampling technique used is simple random sampling. The sample used 35 experimental group students and 35 students as control group. Data collection methods used are observation, test and documentation. Data analysis technique using Independent Sample T-test. Based on the result of the research, it is concluded that (1) there is significant effect of cyclic learning model using power point toward student learning result of line material and class VII corner of MTsN Karangrejo Tulungagung. This can be seen from the value of t-test obtained of 3.741 is greater than the value of with a level of 5% that is equal to 1.994. (2) Big influence of learning model cycle using power point to student learning result of line material and grade angle VII MTsN Karangrejo Tulungagung. This can be seen from the value obtained manually that is equal to 0.92 in the interpretation table with 82% percentage.