cover
Contact Name
Akbar Al Masjid
Contact Email
almasjida@ustjogja.ac.id
Phone
+6289647204929
Journal Mail Official
tuladha@ustjogja.ac.id
Editorial Address
Jl. Kusumanegara, No.157, Muja Muju, Kec. Umbulharjo, Kota Yogyakarta, Daerah Istimewa Yogyakarta, 55165, Indonesia
Location
Kota yogyakarta,
Daerah istimewa yogyakarta
INDONESIA
Tuladha : Jurnal Pendidikan Dasar
ISSN : -     EISSN : 29646774     DOI : 10.30738
Core Subject : Education, Social,
Tuladha : Jurnal Pendidikan Dasar published research result of elementary education, including the following: Thematic learning Elementary mathematics Learning development Literation Thinking process Elementary school curriculum
Articles 47 Documents
DIGITALISASI BAHAN AJAR SUPPLEMENTARY BERBASIS AJARAN TRI-N UNTUK MENGEMBANGKAN KOMPETENSI BAHASA INGGRIS SISWA SEKOLAH DASAR mariana srirahayu; Siti Rochmiyati; Banun Havifah Cahyo Khosiyono
Tuladha : Jurnal Pendidikan Dasar Vol. 2 No. 2 (2023): December
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v2i2.15958

Abstract

The purposes of this study were to: (1) describe the analysis of the digital teaching materials needed in Tri-N teaching-based learning to develop English language proficiency in elementary schools; (2) describe the feasibility of digital teaching materials based on Tri-N teachings from experts and stakeholders; and (3) describe digital teaching materials based on Tri-N teachings that are efficient for improving elementary students' English competence. A new English learning tool and instructional materials were developed as part of this study. The development approach, often known as research and development (R&D), is being used in this qualitative and quantitative research. Interviews, questionnaires, and observation were the tools employed. Students in grades 5 at SDN Planjan II, SDN Planjan 1, and SDN Monggol served as the research subjects. The development model of Borg & Gall (2003: 775) served as the foundation for the research methods. The study's development process was divided into 10 stages, including research and data gathering, planning, development of the initial form of the product, initial field trials, product revision, field trials, operational product revisions, operational field trials, final product revisions, and dissemination. The results of this research show (1) an analysis of the need for digital teaching materials in Tri-N teaching-based learning to develop English language competence in elementary schools is very necessary. (2) RPP and digital supplementary teaching materials based on Tri-N teachings to be used as teaching materials for extracurricular English activities in elementary schools are feasible based on validation results by 1 expert and 2 stakeholders. The average score obtained was a percentage of 88.6% from expert validation which was categorized as "Very Eligible" and a percentage of 90.36% from stakeholder validation which was categorized as "Very Eligible". (3) The final product of digital teaching materials is declared suitable for use with a sig value. (2 tailed) is <0.05, then Ho1 is rejected and Ha1 is accepted so that there is a significant influence of the use of digital teaching materials on learning outcomes.  
PENGEMBANGAN INSTRUMEN PENILAIAN SIKAP PERCAYA DIRI DALAM PEMBELAJARAN BAGI SISWA SEKOLAH DASAR Yuli Astuti Yuli Astuti; Pardimin; Ari Setiawan
Tuladha : Jurnal Pendidikan Dasar Vol. 2 No. 2 (2023): December
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v2i2.15976

Abstract

The research objectives is to produce an instrument for assessing self-confidence in appropriate learning, knowing the quality of the assessment instrument, and knowing the results of the instrument that has been tested on students. This type of research is development research (Research & Development). The data collection technique for this research is a student self-assessment questionnaire with a cluster random sampling technique of 100 for limited trials and 150 for expanded trials. The results of the research show that the instrument for assessing self-confidence in learning that was developed is suitable for use with elementary school students. The results of the instrument validity test using Exploratory Factor Analysis (EFA) showed a KMO MSA value of 0.716, the results of the instrument reliability test using Cronbach's Alpha showed a reliability value of 0.758. These results prove that the self-confidence assessment instrument is valid and reliable. The results of the assessment on the application test of 53 students showed that the attitude of self-confidence in the aspect of self-ability was 86.79% entrenched and 13.21% developed, the attitude of self-confidence in the aspect of responsibility was 94.34% entrenched and 5.66% developed, the attitude of trust in the aspect of communication skills, 84.91% are cultured and 15.09% are developing.
TRIK MAGASING: MENINGKATKAN PRESTASI BELAJAR MATEMATIKA SD Mahmud Syuqron; Pardimin; Muhammad Irfan
Tuladha : Jurnal Pendidikan Dasar Vol. 2 No. 2 (2023): December
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v2i2.16288

Abstract

Mathematics learning outcomes are still said to be low, because many students have not yet reached the KKM. Many factors can influence student learning outcomes in mathematics such as student interest in learning, learning motivation, and student learning creativity. The aim of this research is to determine the effect of applying the magazine trick in mathematics to improve student learning achievement. The population of this study consisted of 8 students who were class VI students from elementary schools in Gunungkidul. With a quantitative approach, Pre-Experimental Design type of experiment. Research results show that the magazine trick can influence students' learning interest, learning motivation and learning creativity, which supports an increase in achievement or learning outcomes. There was an increase in the average value of 28.75, from 28.75 to 86.25.
PENGEMBANGAN MODUL AJAR IPAS BERBASIS TRI-N UNTUK MENINGKATKAN KETERAMPILAN BERFIKIR KRITIS SISWA KELAS V SEKOLAH DASAR NEGERI JOGOSIMO mulyani, mulyani
Tuladha : Jurnal Pendidikan Dasar Vol. 4 No. 1 (2025): June
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v4i1.18879

Abstract

Keadaan siswa yang malu menyampaikan gagasan berbeda, kecenderungan diam dan mengikuti hasil kesimpulan teman, kekurangaktifan bertanya selama pembelajaran membuktikan masih rendahnya berpikir kritis siswa dalam pembelajaran IPAS. Kegiatan pembelajaran IPAS kurang menerapkan strategi pembelajaran untuk meningkatkan keterampilan abad 21 siswa. Tujuan penelitian: (1) menghasilkan modul ajar IPAS berbasis Tri-N untuk meningkatkan kemampuan berpikir kritis siswa kelas V; (2) menguji kelayakan modul ajar IPAS berbasis Tri-N untuk meningkatkan kemampuan berpikir kritis siswa kelas V; dan (3) menguji efektivitas modul ajar IPAS berbasis Tri-N untuk meningkatkan kemampuan berpikir kritis siswa kelas V. Metode penelitian adalah research and development model ADDIE. Teknik pengumpulan data: kuesioner, observasi, wawancara, dan lembar validasi. Analisis data yang digunakan adalah analisis data kuantitatif dan kualitatif deskriptif. Hasil penelitian menunjukkan (1) dihasilkannya produk modul ajar IPAS berbasis Tri-N untuk meningkatkan kemampuan berpikir kritis siswa kelas V; (2) hasil persentase validasi ahli materi sebesar 70,00%, ahli media sebesar 85%, hasil validasi ahli ketamansiswaan sebesar 94%, dan praktisi sebanyak 91% sehingga diperoleh rata-rata hasil validasi ahli dan praktisi adalah 85% dengan kriteria “Sangat Layak”; dan (3) produk modul ajar dinyatakan sangat efektif dengan peningkatan nilai sebesar 0,40 berdasarkan perhitungan rerata skor N-Gain. Abstract The condition of students who are embarrassed to convey different ideas, the tendency to remain silent and follow their friends' conclusions and the lack of activity in asking questions during learning prove that students' critical thinking is still low in science learning. Science and science learning activities do not apply learning strategies to improve students' 21st century skills. Research objectives: (1) produce a Tri-N-based science teaching module to enhance critical thinking skills of fifth graders; (2) test the feasibility of the Tri-N-based science module and science teaching to improve fifth-grade students' critical thinking skills; and (3) test the effectiveness of the Tri-N-based science teaching module in improving fifth-grade students' critical thinking skills. The research method is the ADDIE research and development model. Data collection techniques: questionnaires, observations, interviews and validation forms. The data analysis used is descriptive, quantitative and qualitative. The research results show (1) the production of a Tri-N-based science teaching module to improve the critical thinking skills of class V students; (2) the material experts' validation percentage results were 70.00%, the media experts' were 85%, the student affairs experts' validation results were 94%, and the professionals' were 91%, of so that the average validation results from experts and professionals were 85% with the "Very worthy" criteria; and (3) the effectiveness of the teaching module is obtained by calculating the average N-Gain score before and during implementation of 0.43 and 0.83 with the qualification being very effective.
Manajemen Sekolah Berbasis Sistem Among Dalam Peningkatan Mutu Lembaga Pendidikan Priyadi; Mariah, Siti; Zulfiati, Heri Maria
Tuladha : Jurnal Pendidikan Dasar Vol. 4 No. 1 (2025): June
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v4i1.18979

Abstract

Berdasarkan analisis kebutuhan teridentifikasi perlu adanya peningkatan mutu lembaga pendidikan dengan mengembangkan manajemen sekolah berbasis sistem among. Penelitian ini bertujuan untuk: (1) menghasilkan buku pedoman manajemen sekolah berbasis sistem among; (2) menguji kelayakan buku pedoman manajemen sekolah berbasis sistem among; dan (3) menguji efektifitas buku pedoman manajemen sekolah berbasis sistem among. Metode penelitian ini adalah research and development model ADDIE. Hasil penelitian menunjukkan bahwa (1) dihasilkan buku pedoman manajemen sekolah berbasis sistem among yang dikembangkan memiliki karakteristik yang baik jika ditinjau dari segi isi, pedoman, materi, dan penyajiannya; (2) hasil persentase validasi ahli ketamansiswaan sebanyak 90,62%, hasil validasi ahli buku pedoman sebanyak  90,31%,  sehingga diperoleh rata-rata hasil validasi ahli 90,47% dengan kriteria “Sangat Layak”; dan (3) hasil uji kelayakan efektifitas produk menggunakan uji t berpasangan. Pada uji coba skala terbatas diperoleh nilai t hitung 12,362 signifikansinya 0,00, dibandingkan dengan nilai t table taraf signifikansinya t_0,01= 2,947 dan t_0,05= 2,131. Sedangkan pada uji coba skala luas diperoleh nilai t hitung 50,408, signifikansinya 0,00 dibandingkan dengan nilai t table taraf signifikansi t_0,01= 3,355 dan t_0,05 = 2,306. Dari hasil analisis keefektifan, terdapat perbedaan yang signifikan antara pretest dan posttest, dapat diartikan bahwa buku pedoman efektif meningkatkan mutu lembaga pendidikan. Abstract Based on the needs analysis, it was identified that educational institutions have not implemented school management optimally in improving the quality of education in their institutions. There needs to be an improvement in the quality of educational institutions by developing school management based on the among system. This study aims to: (1) produce a school management guideline book based on the among system; (2) test the feasibility of the school management guideline book based on the among system; and (3) test the effectiveness of the school management guideline book based on the among system. The research method is the ADDIE research and development model. The results of the study showed that (1) the school management guideline book based on the among system that was developed has good characteristics when viewed in terms of content, guidelines, materials, and presentation; (2) the results of the validation percentage of student park experts were 90.00%, the results of the validation of the guideline book experts were 90.625%, so that the average results of the validation of student park experts and guideline book experts were 90.3125% with the criteria "Very Eligible"; and (3) the results of the product effectiveness test showed that it was carried out using a paired t-test. From the results of the analysis of the effectiveness of the two product trials, there was a significant difference between the pretest and posttest, which can be interpreted as meaning that the guidebook is effective in improving the quality of educational institutions and the professionalism of school principals and teachers.
Pengembangan Instrumen Asesmen untuk Meningkatkan Berpikir Kritis Menggunakan Quizizz Pada Pembelajaran IPAS Kelas IV Sekolah Dasar Harsono, Muhamad Sarbani; Setiawan, Ari
Tuladha : Jurnal Pendidikan Dasar Vol. 4 No. 1 (2025): June
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v4i1.20422

Abstract

Abstrak: Penelitian ini bertujuan untuk: (1) menghasilkan instrumen asesmen yang dikembangkan untuk meningkatkan berpikir kritis melalui Quizizz pada pembelajaran IPAS SD kelas IV; (2) menguji kelayakan instrumen asesmen yang dikembangkan untuk meningkatkan berpikir kritis melalui Quizizz pada pembelajaran IPAS SD kelas IV; dan (3) menguji efektivitas instrumen asesmen yang dikembangkan untuk meningkatkan berpikir kritis melalui Quizizz pada pembelajaran IPAS SD kelas IV. Model penelitian ini adalah research and development dengan pendekatan ADDIE. Pendekatan ADDIE merupakan desain model pembelajaran yang sistematis yang terdiri dari lima tahap yaitu Analysis, Design, Development, Implementation, dan Evaluation. Subjek uji coba terbatas dalam penelitian ini adalah siswa SDN Kwd, sedangkan subjek uji coba luas adalah siswa SDN Bjr. Teknik pengumpulan data dilakukan dengan teknik observasi, kuesioner, wawancara, dan validasi. Analisis data yang digunakan adalah analisis data kuantitatif untuk menganalisis data yang berupa angka, yaitu data yang diperoleh dari hasil tes dan analisis data kualitatif untuk menganalisis data yang diperoleh melalui observasi, kuesioner, dan wawancara dengan teknik deskriptif kualitatif. Hasil penelitian menunjukkan bahwa: (1) dihasilkan instrumen asesmen yang dapat meningkatkan berpikir kritis yang dikembangkan melalui Quizizz dengan karakteristik baik jika ditinjau dari segi isi dan penyajiannya;(2) hasil persentase validasi ahli media asesmen sebanyak 95%, hasil validasi ahli materi sebanyak 92,5%, sehingga diperoleh rata-rata hasil validasi ahli adalah 93,75% dengan kriteria “Sangat Layak”; dan (3) hasil uji efektivitas produk menunjukkan efektif, yang dilakukan dengan uji N-gain. Nilai berpikir kritis siswa sebelum penerapan produk sebesar 1,78 atau sebesar 44,5% dan setelah penerapan pada uji coba terbatas meningkat menjadi 3,53 atau sebesar 88,25% dengan hasil penghitungan N-gain 0,78 yang kriteria gain ternormalisasinya tinggi yang artinya efektif. Nilai berpikir kritis siswa pada uji coba luas sebesar 3,60 atau 90%, yang meningkat dibanding sebelum penerapan dari 1,94 atau sebesar 48,5% dengan N-gain diperoleh nilai 0,81 yang kriteria gain ternormalisasinya tergolong tinggi yang artinya efektif dalam meningkatkan berpikir kritis. Dari hasil analisis keefektifan kedua uji coba produk, terdapat peningkatan nilai berpikir kritis, dan disimpulkan bahwa instrumen asesmen IPAS melalui Quizizz efektif meningkatkan berpikir kritis siswa kelas IV SD.
Analisis faktor penyebab rendahnya semangat belajar siswa sekolah dasar di Batusangkar Latifa, Putri Dwi; Safrizal, Safrizal; Fadriati, Fadriati
Tuladha : Jurnal Pendidikan Dasar Vol. 3 No. 1 (2024): June
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v3i1.14116

Abstract

Latar belakang penelitian ini adalah  di temukan di salah satu permasalahan yang terdapat dalam pembelajaran di SDN X yaitu rendanya semangat belajar siswa dalam mengikuti proses pembelajaran.Tujun penelitian ini adalah untuk menjabarkan foktor yang menyebabkan rendahya semangat belajar siswa.Jenis penelitian yang di gunakan oleh peneliti adalah studi kasus.sabjek dalam penelitian ini adalah guru kelas V SD yang berjumlah        2 orang, siswa kelas v yang berjumlah 18 orang yang mengumpulkan data menggunakan teknik snoboll sampling. Instrument utama dalam penelitian ini adalah instrument itu sendiri, namun dalam pelaksanaanya penelitian menggunakan alat bantu, yaitu pedomoan wawancara kamera, catatan lapangan dan hp yang di gunakan untuk merekan hasil wawancara. Dalam pengumpulan data di lakukan dengan 3 cara yaitu wawancara, observasi dan dokumentasi. Setelah terkumpul data oleh peneliti yang di dapat oleh informan setelah data di peroleh kemudian di lakukan analisis data setelah analisis data kemudian reduksi data kemudian display data dan setelah itu peneliti mendapatkan kesimpulan. Hasil penelitian menemukan terdapatnya bahwa di kelas V SD terdapat rendahnya  semangat belajar siswa  dalam mengikuti pembelajaran  saat dalam proses pembelajaran masih ada siswa yang keluar masuk, dan siswa yang asik main sendiri, masi ada siswa yang tidak lancara membaca , dan siswa tidak paham terhadap materi yang telah di jelaskan oleh guru, siswa yang tidur terlalu malam, dan pengaruh terbesan adalah karena main hp , kurang Kontrol dari orang tuan, pengaruh lingkugan,dan tidak serapan pagi.   The background of this study is found in one of the problems found in learning at SDN X, namely the low enthusiasm of students in following the learning process. The purpose of this study is to describe the factors that cause low student enthusiasm. The type of research used by researchers is a case study. the subjects in this study were V grade elementary school teachers totaling 2 people, v grade students totaling 18 people who collected data using the snoboll sampling technique. The main instrument in this research is the instrument itself, but in its implementation the research uses auxiliary tools, namely the camera interview pedomoan, field notes and cellphones that are used to record the results of interviews. In collecting data in 3 ways, namely interviews, observation and documentation. After collecting data by researchers obtained by informants after the data is obtained, data analysis is carried out after data analysis then data reduction then data display and after that the researcher gets a conclusion. The results of the study found that in class V SD there was a low enthusiasm for student learning in participating in learning when in the learning process there were still students who came in and out, and students who were busy playing alone, there were still students who were not fluent in reading, and students did not understand the material explained by the teacher, students who slept too late, and the influence of the teacher.  
Gambaran penanaman sikap peduli sosial dalam penanganan perundungan pada peserta didik Erniasari, Erniasari; Cahyani, Berliana Henu; Nisa, Ana Fitrotun
Tuladha : Jurnal Pendidikan Dasar Vol. 3 No. 1 (2024): June
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v3i1.15056

Abstract

Sikap peduli sosial adalah kesadaran yang tumbuh dalam diri seseorang dari interaksi dengan orang lain yang memiliki rasa empati dan kasih sayang sehingga seseorang memiliki kesadaran untuk membantu orang lain yang membutuhkan. Pembentukan karakter peserta didik merupakan salah satu tugas dan tanggung jawab lembaga pendidikan, salah satunya sekolah dasar. Penanaman nilai-nilai karakter kepada peserta didik harus dilakukan sejak dini. Subjek dalam penelitian ini adalah 4 orang siswa kelas IV sekolah dasar. Penelitian dilakukan di salah satu lokasi sekolah di kabupaten Gunungkidul. Pendekatan penelitian dengan pendekatan kualitatif, pengumpulan data melalui observasi dan wawancara. Gambaran penanaman sikap peduli sosial dalam penanganan bullying pada siswa dilakukan melalui berbagai peran guru diantaranya sebagai pendidik dan pengajar, guru memberikan bimbingan konseling pada siswa, guru sebagai motivator, Guru sebagai fasilitator, guru sebagai sumber belajar. Berbagai faktor pendukung juga sangat mempengaruhi penanaman sikap peduli sosial pada siswa yaitu pelaksanaan upacara bendera, kegiatan apel pagi, senam sehat bersama, kerja bakti di lingkungan sekolah, melayat tetangga sekolah yang meninggal dunia atau kerabat teman yang meninggal dunia. Dampak dari upaya guru dalam menanamkan sikap peduli sosial pada siswa yaitu sikap peduli sosial yang dimiliki oleh siswa sudah baik.   Social care attitude is the awareness that grows in a person from interaction with others who have a sense of empathy and compassion so that someone has the awareness to help others in need. Character building of students is one of the duties and responsibilities of educational institutions, one of which is elementary schools. Instillation of character values to learners must be done from an early age. The subjects in this study were 4 elementary school grade IV students. The research was conducted at one of the school locations in Gunungkidul district. Research approach with qualitative approach, data collection through observation and interviews. The picture of instilling social care attitudes in handling bullying in students is carried out through various teacher roles including as educators and teachers, teachers providing counseling guidance to students, teachers as motivators, Teachers as facilitators, teachers as learning resources. Various supporting factors also greatly affect the cultivation of social care attitudes in students, namely the implementation of flag ceremonies, morning apple activities, healthy gymnastics together, community service work in the school environment, mourning school neighbors who died or relatives of friends who died. The impact of teachers' efforts in instilling social care attitudes to students is that the social care attitudes possessed by students are good.
PERAN PAGUYUBAN ORANGTUA SISWA DI KELAS VI SDN BANTALWATU TEPUS GUNUNGKIDUL Isnaini, Lina; Nisa, Ana Fitrotun
Tuladha : Jurnal Pendidikan Dasar Vol. 2 No. 2 (2023): December
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v2i2.15727

Abstract

This study aims to describe the role of the parent’s association in class VI of SDN Bantalwatu, Tepus, Gunungkidul. The method used in this research qualitative method. Data collection techniques with documentation, interviews, and observation. While the data analysis technique used is the data analysis technique of the Miles & Huberman interactive model. The model includes data collection, data reduction, data presentation, and drawing conclusions. Validity test using technique and source triangulation. This resulted of this study indicate that the role of parents of class VI student at the SDN Bantalwatu include (1) participating in the facilities and infrastructure, namely providing educational material assistance. (2) participating in a moral form such as monitoring students in learning at home, contributing ideas, discussing student problems and attending various   activities at school (3) Participate in financial form, namely regular donations or activates that cannot be financed by the school.  The factors that encourage the participation of parents in motivating and the interest of parents to participate in education, there are Forums for participation in the form of association Forums and teacher attitude, while the inhibiting factors are different economic conditions, busy parents.
UPAYA MENINGKATKAN PRESTASI BELAJAR MATEMATIKA MELALUI METODE SENGKEDAN PADA SISWA KELAS IV SEKOLAH DASAR Zumaroh, Mimin; Nisa, Ana Fitrotun
Tuladha : Jurnal Pendidikan Dasar Vol. 2 No. 2 (2023): December
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/tuladha.v2i2.15789

Abstract

Mathematics is a subject that is still considered a scourge and difficult for students to learn. This is due to the factor of inaccurate mathematics learning methods. This problem prompted the author to conduct research using the Swales method in studying FPB and KPK teaching materials. The author conducted a study that aimed to find out whether the use of the Swale method could improve student achievement at SDN Karangrejek I. The type of research used was action research, in which the researcher tried to apply an action as an effort to correct the problems found. The implementation of this research was carried out through 3 cycles. Cycle 1 was held on September 15 and 19 2022, Cycle 2 took place on September 20 2022, and Cycle 3 was held on September 22 2022. The data collected was in the form of results from observations of learning activities, pre-test and post-test scores. The results of the analysis of the score from the pre-test with the results of cycle 1 showed an increase with intervals of 61-80 obtained 55% from 35% previously, then in cycle 2 with intervals of 81-100 obtained 60%, and at the end of the cycle obtained 70%. While students who achieve KKM by going through 3 cycles are as much as 85% or a number of 17 out of 20 students. These results prove that the Swale method can improve student achievement in FPB and KPK teaching materials at SDN Karangrejek I.