Jurnal Mahasiswa Pendidikan Matematika (JMPM)

PENGARUH MEDIA AUDIO VISUAL TERHDAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS X SEMESTER GENAPSMA NEGERI 3 BANDAR LAMPUNG TAHUN PELAJARAN 2022/2023

Ulfia Apriyanti — 2023-06-23

Ketidakmampuan siswa untuk memecahkan masalah matematika salah satunya disebabkan oleh kurang memanfaatkan media pembelajaran yang membuat siswa memperhatikan dalam proses pembelajaran matematika. Oleh sebab itu, penelitian ini bertujuan untuk mengetahui bagaimana pengaruh media audio visual terhadap kemampuan siswa dalam memecahkan masalah matematika di kelas X SMA Negeri 3 Bandar Lampung tahun ajaran 2022/2023. Populasi dalam penelitian ini adalah seluruh kelas X semester genap di SMA Negeri 3 Bandar Lampung. Memanfaatkan teknik Cluster Random Sampling, sampel diambil dari dua kelas yaitu kelas X-3 dan kelas X-4. Tes berbentuk esai lima soal digunakan untuk menilai kemampuan siswa dalam menjawab soal numerik. Validitas dan reliabilitas esai sudah diperiksa. Uji t digunakan untuk menguji hipotesis. Hasil pengujian didapatkan dengan melihat ukuran pengujian sebesar 5% didapat, dimana standar pengujian 4,51 > 1,66 sehingga diberhentikan dan diakui. Dalam hal ini menunjukkan bahwa keterampilan pemecahan masalah matematika rata-rata lebih tinggi yang menggunakan media audio-visual dari pada siswa yang menggunakan media konvensional. Hal ini mengindikasikan bahwa siswa kelas X SMA Negeri 3 Bandar Lampung tahun pelajaran 2022/2023 akan mendapatkan manfaat dari penggunaan media audio visual.

PENGARUH PENGGUNAAN MEDIA PRESENTASI POWERPOINT TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VIII SEMESTER GENAP SMP NEGERI 09 BANDAR LAMPUNG TAHUN PELAJARAN 2022/2023

Silvia Kusuma Putri — 2023-06-23

This study aims to determine the effect of PowerPoint presentation media on the mathematical problem solving abilities of Grade VIII students in the even semester of SMP Negeri 09 Bandar Lampung in the 2022/23 academic year. The Cluster Random Sampling method was used to determine the sample. The sample used two classes, namely class VIII D and class VIII A. The description test was used to measure students' ability to solve mathematical problems. There are five questions that have gone through validation and reliability tests. The t-test is used to test the hypothesis. The results of hypothesis testing show the value of = 3.12 and from the t distribution table at a significance level of 5% shows = 1.67, meaning that > is 3.12 > 1.67, which indicates that the average student's ability to solve Mathematical problems using PowerPoint presentation media are higher than students using conventional learning media. It can be concluded that there is an influence of PowerPoint presentation media on the ability to solve math problems in class VIII even semester of SMP Negeri 09 Bandar Lampung for the 2022/2023 academic year.

PENGEMBANGAN E-MODUL BERBASIS KEARIFAN LOKAL PADA MATERI SPLDV UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH KELAS VIII SMP PGRI 4 BANDAR LAMPUNG

Mayang Sari — 2023-06-23

This study aims to develop and determine the feasibility, practicality and effectiveness of Android-based articulate storyline 3 interactive learning media on set material for class VII SMP 17.1 Gedong Tataan. This study uses the ADDIE development model which consists of five stages of development, namely: Analysis (A), Design (D), Development (D), Implementation (I), Evaluation (E). The assessment instrument is a questionnaire sheet that is used for the feasibility test of interactive interactive learning media products based on articulate storyline 3 android. The results of this development research have resulted in an interactive articulate storyline 3 learning media product based on android on set material in class VII with eligibility according to the results of the material expert's assessment obtaining a value of 4.73 with valid criteria, media expert's assessment obtaining a value of 4.73 with valid criteria, and the assessment of linguists obtained a value of 4.72 with valid criteria. The teacher's response obtained a value of 4.70 with practical criteria, and student responses obtained a value of 4.77 with attractive criteria. For the assessment of the effectiveness of learning media, it was obtained that the percentage of 80% of students was complete in learning. Thus the developed media is suitable for use as learning media.

PENGARUH MODEL PEMBELAJARAN SOMATIC, AUDITORY, VISUALIZATION, INTELECTUALLY BERBANTUAN MEDIA BERBASIS KOMPUTER TERHADAP HASIL BELAJAR MATEMATIKA KELAS VIII MTs MATHLA’UL ANWAR SERIBU PESAWARAN TAHUN PELAJARAN 2022/2023

Maryana — 2023-06-23

The low mathematics learning outcomes of students are partly due to the less than optimal use of learning models. Therefore, the purpose of this study was to determine and analyze the effect of students' mathematics learning outcomes using somatic, auditory, visual, intellectual (SAVI) learning models assisted by computer-based media in class VIII MTs Mathla'ul Anwar Seribu Pesawaran. This study used an experimental method with a population of all VIII grade students of MTs Mathla'ul Anwar Seribu Pesawaran. While the sample was taken 2 classes, namely class VIII A with a total of 30 students and class VIII B with a total of 30 students. Students' math learning outcomes are measured by tests in the form of essays as many as 8 questions which have first been tested for validity and reliability after normal and homogeneous data results. Hypothesis testing using the t test. From the results of hypothesis testing, the t-count value is 9.659. For t-table with the number of variables is 2 and the number of respondents 30 is 1.579. Because t-count ≥ t table, and the significance value <0.05, H0 is rejected and Ha is accepted, which means that there is a significant difference from each independent variable. Thus there is an effect of somatic, auditory, visual, intellectual (SAVI) learning model assisted by computer-based media on the mathematics learning outcomes of 8th grade students of MTs Mathla'ul Anwar Seribu Pesawaran in the 2022/2023 academic year.

PENGARUH PENGGUNAAN MULTIMEDIA INTERAKTIF BERBASIS REALISTIKTERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VIII SEMESTER GANJIL UPT SMP NEGERI 35 BANDAR LAMPUNG TAHUN PELAJARAN 2022/2023

Agista Ramadona — 2023-06-23

The ability of Grade VIII Students in Even Semester UPT SMP Negeri 35 Bandar Lampung in the Academic Year 2022/2023. The method used in this research is the experimental method. This research is experimental research with the research population, namely all students of class VIII. Class VIII D is the experimental class and class VIII E is the control class. The sampling technique used is Cluster Random Sampling. Measuring students' mathematical problem-solving abilities using a test in the form of an essay with 5 questions. Data analysis used simple statistical analysis with the t test formula with t_hit = 3,07 at a significant level of 5% obtained t_daf= t_(1-1/2 ₎= 1,67 meaning t_tes> t_daf then H₀ is rejected then is accepted thus can it was concluded that there was an effect of the use of realistic-based interactive multimedia on the mathematical problem-solving abilities of class VIII UPT SMP Negeri 35 Bandar Lampung in the 2022/2023 academic year.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS LEARNING CYCLE 5E PADA MATERI SEGI EMPAT DAN SEGITIGA UNTUK MEMFASILITASI KEMAMPUAN KOMUNIKASI MATEMATIKA PESERTA DIDIK KELAS VII UPT SMP NEGERI 14 BANDAR LAMPUNG

Lusya Cahya Febbian — 2023-06-23

This development research is motivated by mathematics teaching materials in class VII UPT SMP Negeri 14 Bandar Lampung which have not fully facilitated students towards mathematical communication skills. The teaching materials used do not provide opportunities for students to find mathematical concepts independently and do not provide opportunities for students to express their own opinions. The purpose of this research and development is to: 1) develop and determine the feasibility of Learning Cycle 5E-based LKPD to facilitate students' mathematical communication skills on the material of rectangular and triangular flat shapes in class VII SMP in terms of validity, attractiveness, and practicality as teaching materials, and 2) determine the effectiveness of using Learning Cycle 5E-based LKPD to facilitate students' mathematical communication skills on the material of rectangular and triangular flat shapes. This type of research is Research and Development (R&D) with the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) model. The results of LKPD validation for material experts obtained a value of 4.34 with "Valid" criteria, media expert validation of 4.29 with "Valid" criteria, linguists of 4.79 with "Valid" criteria, the results of students' responses obtained a value of 4.58 with "Interesting" criteria, and from the response of educators obtained an average value of 4.47 with "Practical" criteria. After using the Learning Cycle 5E-based LKPD developed, learning completeness through the trial test of students on mathematical communication skills reached a clasical completeness of 87%. These results state that the Learning Cycle 5E-based mathematics LKPD for class VII SMP is suitable for use as teaching material.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS ETNOMATEMATIKA MENGGUNAKAN PERMAINAN TRADISIONAL LAMPUNG TAPLAK PADA MATERI SEGI EMPAT SEGITIGA KELAS VII SMP SWADHIPA 1 NATAR

Sintia Sukmawati — 2023-06-23

This research and development is based on the fact that mathematics teaching materials for class VII SMP Swadhipa 1 Natar do not meet the learning needs of students' mathematics and do not bridge mathematics and culture. The teaching materials used are limited to student handbooks. The objectives of this research and development are: 1) to develop and determine the feasibility of ethnomathematics-based worksheets using traditional Lampung tablecloth games on the subject matter of rectangles and triangles in terms of their validity as teaching materials, 2) to find out the response of teachers and students to the developed ethnomathematics-based worksheets, and 3) find out the effectiveness of the Student Worksheets (LKPD) developed in terms of student learning outcomes on the subject of rectangles and triangles. This study uses research and development (R&D) methods with the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) development model. The results showed that material validation for Student Worksheets (LKPD) with a value of 4.25, media validation with a value of 4.13, and language validation with a value of 4.76, all of which were declared valid. Student responses showed an average of 4.58 in the interesting category, while teacher responses showed an average value of 4.61 in the practical category as teaching materials. After using the developed ethnomathematics-based Student Worksheets (LKPD), the percentage of students' learning completeness reached 90% which indicated that the developed LKPD was effective on students' mathematics learning outcomes in rectangular and triangular material. These results indicate that ethnomathematics-based Student Worksheets (LKPD) for class VII SMP are appropriate for use as teaching materials.

PENGEMBANGAN LKPD BERBASIS DISCOVERY LEARNING UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS VIII SEMESTER GENAP SMP BHAKTI BARADATU

Antika Ken Imaniary — 2023-06-23

This research and development is motivated by mathematics teaching materials in grade VIII of SMP Bhakti Baradatu which have not fully facilitated students’ mathematical problem-solving skills. In addition, the teaching materials used do not provide opportunities for students to discover mathematical concepts independently. This type of research is Research and Development (R&D) with the ADDIE model. The results of LKPD validation for material experts obtained a value of 4.40, media validation obtained a value of 4.42 and language validation obtained a value of 4.31 all with the criteria "Valid". The results of the student response questionnaire obtained an average score of 4.14 with the criteria " Practical/Interesting", and the results of the teacher response questionnaire obtained an average score of 4.78 which means the LKPD criteria are "Practical/ Interesting". After using the LKPD-based Discovery Learning developed, completeness through student testing of mathematical problem solving skills reached classical completeness of 80%. The results stated that the Discovery Learning-based mathematics LKPD for grade VIII junior high school is suitable to be used as teaching material.

PENGEMBANGAN MODUL MATEMATIKA BERBASIS CONTEXTUAL TEACHING AND LEARNING (CTL) BERNUANSA PROFIL PELAJAR PANCASILA PADA MATERI BANGUN RUANG SISI DATAR KELAS VIII SMP SWADHIPA 1 NATAR

Destia Rini — 2023-06-23

This study aims to: 1) determine the feasibility of Contextual Teaching and Learning (CTL)-based mathematics modules with the nuances of Pancasila student profiles for Grade VIII students of junior high schools in terms of validity, practicality, and attractiveness of teaching materials, and 2) determine the relevance of Contextual-based mathematics modules Teaching and Learning (CTL) has the nuances of Pancasila student profiles for Grade VIII students of SMP towards learning outcomes. This research is research and development with the ADDIE development model. The results of the validation of the mathematics module for material experts obtained a value of 4.68, the validation of the media obtained a value of 4.75 and the language validation obtained a value of 4.86 which are all in the "Valid" criteria. The results of the student response questionnaire obtained an average score of 4.53 with the "Interesting" criteria, and the results of the teacher's response questionnaire obtained an average of 4.9 with the acquisition of "Practical". Student learning completeness is classified as "High" with classical mastery of 89%. It can be interpreted that product development is suitable and affective for use as teaching materials.

PENGEMBANGAN POCKET BOOK DIGITAL BERBASIS MASALAH PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL (SPLDV) UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VIII SMP NEGERI 7 TULANG BAWANG BARAT

Tasya Safa Melinda — 2023-06-23

This study aims to: 1) analyze the feasibility of problem-based digital Pocket Books on the material of the Two-Variable Linear Equation System (SPLDV) in terms of media validity, 2) analyze the responses of teachers and students to the use of problem-based digital Pocket Books on the material of the Two-Linear Equation System Variables (SPLDV) are reviewed from the attractiveness and practicality of the media, and 3) analyze the effectiveness of problem-based digital Pocket Books on the material of the Two-Variable Linear Equation System (SPLDV) in facilitating mathematical problem-solving skills. This research is research and development with the ADDIE model. The validation results for the digital pocket book material obtained a value of 4.53, the media validation obtained a value of 4.50, and the language validation obtained a value of 4.36, all of which were in the "Valid" criteria. The results of the student response questionnaire obtained an average value of 4.55 with the "Interesting" criteria, and the results of the teacher's response questionnaire obtained an average of 4.83 with the "Practical" criteria. Student learning completeness which describes students' mathematical problem solving abilities in the "High" category with classical completeness of 91%. It can be concluded that product development is feasible to use as a learning medium.

PENGEMBANGAN MODUL BERBASIS PQ4R UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA PADA SISWA KELAS XI SMK NEGERI 7 BANDAR LAMPUNG TAHUN PELAJARAN 2022/2023

Ketut Mitri — 2023-06-23

The research aims to determine (1) to determine the quality of the PQ4R-based mathematics module in terms of the validity of teaching materials. (2) To find out the quality of the PQ4R-based mathematics module in terms of the practicality of teaching materials. (3) To determine the effectiveness of the PQ4R-based mathematics module in terms of students' mathematical problem solving abilities. This research is development research. The stages in the development are analysis, design, development, implementation, and evaluation. Product validation is carried out by 6 expert lecturers in accordance with their fields. Practicality questionnaire to measure the response of class XI students at SMK Negeri 7 Bandar Lampung in product trials and learning achievement tests to measure the effectiveness of the module as teaching material. The results of material validation on the aspects of content quality, coverage provisions and PQ4R obtained a value of 3.87 with a percentage of 96.75% with valid criteria. Media validation both on the paper size in the module, the module skin design, and the module content design obtained a value of 3.79 with a percentage of 94.75% with valid criteria. Language validation in the aspect of accuracy of sentence structure, understanding of messages and information as well as being straightforward obtains a score of 4 with a percentage of 100% with valid criteria. After using the module that had been developed, the students experienced an increase in mastery of mathematics learning outcomes in the flat sided geometric material to 74.19% of the number of students and there was a positive response from students who stated the practical module with an average student questionnaire of 3.93 with a percentage of 98, 33%. Thus the mathematics module based on PQ4R geometry transformation material is feasible to use as teaching material.

UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA MELALUI MODEL PEMBELAJARAN FLIPPED CLASSROOM PADA SISWA KELAS VIII SMP KARTIKA II-2 BANDAR LAMPUNG TAHUN PELAJARAN 2022/2023

Iskandar Zulkarnain — 2023-06-23

This research is motivated by the low mathematics learning outcomes of class VIII SMP Kartika II-2 Bandar Lampung. This study aims to find out and describe the application of the Flipped Classroom learning model to improve mathematics learning outcomes in class VIII students at SMP Kartika II-2 Bandar Lampung and to improve mathematics learning outcomes through the application of the Flipped Classroom learning model to class VIII students at SMP Kartika II-2 Bandar Lampung. The type of research conducted is Classroom Action Research. The subjects of this study were 24 students of class VIII SMP Kartika II-2 Bandar Lampung. The research design used is the Kemmis and Mc model. Taggart which contains the stages of planning, implementing actions and observing, and reflecting. The data collection instruments used were essay questions to measure Mathematics learning outcomes and observation sheets to measure Mathematics learning activities. The type of data analysis used is qualitative and quantitative data analysis. Based on the results of data analysis in this study, the following conclusions can be drawn 1) The Flipped Classroom learning model can improve mathematics learning outcomes for class VIII students of SMP Kartika II-2 Bandar Lampung in the 2022/2023 academic year. 2) Improving students' mathematics learning outcomes by applying the Flipped Classroom learning model from cycle I with an average of 68.75 to cycle II with an average of 78.75. Thus there is an increase of 10%.

PENGEMBANGAN MEDIA PEMBELAJARAN KOMIK MATEMATIKA BERBASIS PENDIDIKAN KARAKTER PADA MATERI SEGI EMPAT DAN SEGITIGA UNTUK KELAS VII SMP NEGERI 1 ATAP 4 PESAWARAN TAHUN PELAJARAN 2022/2023

Eva Febriana — 2023-06-23

This study aims to: (1) produce a product in the form of character education-based mathematical comic learning media on rectangular and triangular material for class VII students and determine its feasibility in terms of media validity, (2) determine the effectiveness of character education-based mathematical comic learning media on rectangular and triangular material for class VII students in terms of the attractiveness and practicality of the media as well as student learning outcomes. This type of research is Research and Development research. In this development using the ADDIE model with research stages namely analysis, design, development, implementation, and evaluation. Mathematical comic learning media based on character education. Web validation is carried out by 3 expert lecturers who are competent in their fields. Then the comics were tested on class VII students of SMP Negeri 1 Atap 4 Pesawaran and then the responses of educators and students were seen through a questionnaire. From the results of the material validation, a value of 4.2 was obtained with valid criteria. Media validation obtained a value of 4.67 with valid criteria. Language validation obtained a value of 4.6 with valid criteria. After using the comics developed, students' learning completeness can be categorized as good with the achievement of classical mastery of 81%, student responses in the practical category with a value of 4.49 and educator responses in the practical category with a value of 4.00. This the learning media for math comics on rectangular and triangular material for class VII is appropriate to be used as a learning medium.

PENGARUH MODEL PEMBELAJARAN MEANS ENDS ANALYSIS (MEA)TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VIII SEMESTER GENAP SMP N 1 PESAWARAN TAHUN PELAJARAN 2022/2023

Riski Adi Saputra — 2023-06-23

The problems studied in the research are related to students' low mathematical problem solving abilities and the application of the Means Ends Analysis (MEA) model. The aim of the research is to determine and analyze the difference in the average problem solving ability using the Means Ends Analysis (MEA) model which is higher than that using conventional learning for class VIII Even Semester students at SMP Negeri 1 Pesawaran for the 2022/2023 academic year. This research is using experimental method. The population in this study were all class VIII students at SMP Negeri 1 Pesawaran consisting of 11 classes with a total of 344 students, while the sample was taken from 2 classes, namely class VIIIA as the experimental class, totaling 32, and class VIIIB as the control class, totaling 32. The sample was taken using the Cluster Random Sampling technique. Students' mathematical problem solving abilities are measured using a test in the form of an essay with 5 questions whose validity and reliability have been tested. Hypothesis testing uses the t-test. From the results of hypothesis testing using the t- test, the value t = 3.61 was obtained. From the t distribution table at the 5% significance level, it is known that t = t_((1-α))= meaning t > t, namely 3.61 > 1.67, so it can be concluded that "The average mathematical problem solving ability of students who use the learning model "Means Ends Analysis (MEA) is greater than the average problem solving ability of students who use the conventional model in class VIII students in the even semester of SMP Negeri 1 Pesawaran for the 2022/2023 academic year." This situation can be seen from the average value of the experimental class students' mathematical problem solving abilities which is higher than the control class, namely 75.75 > 65.50.

PENGEMBANGAN MEDIA PEMBELAJARAN INTERAKTIF ARTICULATE STORYLINE 3 BERBASIS ANDROID PADA MATERI HIMPUNAN UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VII SMP 17.1 GEDONG TATAAN

Merli Handayani — 2023-06-23

This study aims to develop and determine the feasibility, practicality and effectiveness of Android-based interactive learning media Articulate Storyline 3 on set material for class VII SMP 17.1 Gedong Tataan. This study uses the ADDIE development model which consists of five stages of development, namely: (A) Analysis, (D) Design, (D) Development, (I) Implementation, (E) Evaluation. The assessment instrument used was a questionnaire to see the feasibility of Android-based interactive learning media Articulate Storyline 3 as well as a test to see students' mathematical problem solving abilities. The results of the development research showed that the interactive learning media Articulate Storyline 3 based on android on set material in class VII was declared valid in terms of material by obtaining a value of 4.20 on valid criteria, in terms of media obtaining a value of 4.33 with valid criteria, and in terms of language obtaining a value of 4.58 with valid criteria. The teacher's response obtained a value of 4.44 with practical criteria, and a student response of 4.54 with attractive criteria. The developed media is also able to facilitate students' mathematical problem solving abilities with a classical completeness percentage of 81%. Thus the developed media is suitable for use as learning media.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS PROBLEM BASED LEARNING UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS VIII SEMESTER GANJIL SMP NEGERI 33 BANDAR LAMPUNG

Annisa Fadila Qinvi — 2023-06-23

The background to this research and development of student worksheet is mathematics teaching material for 8^th class of Junior High School 33 Bandar Lampung which have not fully facilitated the ability to solve mathematical problem. In this study it was found that the teaching materials used did not fully support the problem-solving abilities of each learning material through scientific activities. The type of research used is Research and Development (R&D) with the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) model. The results of the LKPD validation for media experts obtained a value of 4.69, material validation obtained a value of 4.90 and language validation obtained a value of 4.24, all of which are "Valid" criteria. After using LKPD based on developed Problem Based Learning, learning completeness through tests of students on the ability to solve mathematical problems reached classical completeness of 84,4%. These results state that LKPD based on Problem Based Learning of 8^th class of Junior High School is appropriate for use as teaching materials.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS OPEN ENDED UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA PADA MATERI LINGKARAN KELAS VIII SMP NEGERI 33 BANDAR LAMPUNG

Almas Shifa Priastri — 2023-06-23

This research and development is based on mathematics teaching materials of grade VIII SMP Negeri 33 Bandar Lampung which have not fully facilitated students in solving mathematical problems. The teaching materials used do not provide opportunities for students to discover mathematical concepts independently. This type of research is Research and Development (R&D) with the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) model. This type of research is Research and Development (R&D) with the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) model. The results of the module validation for the material obtained a value of 4.69, the media validation obtained a value of 4.53 and the language validation obtained a value of 4.46, all of which are "Valid" criteria. After using the developed Open Ended-based LKPD, the learning completeness through test trials of students reached 84%, which means that the developed LKPD was effective in facilitating mathematical problem solving abilities. These results state that the developed Open Ended-based mathematics LKPD for class VIII SMP is suitable for use as teaching material.

PENGARUH MODEL PEMBELAJARAN CREATIVE PROBLEM SOLVING (CPS) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VIII SEMESTER GENAP SMP NEGERI 31 BANDAR LAMPUNG

Febi Valentiani — 2023-06-23

The method used in this research is the experimental method. The population in the study were all Grade VIII students in the even semester of SMP Negeri 31 Bandar Lampung for the 2022/2023 academic year, which were spread over 9 classes with a total of 279 students. From this population, two classes were taken as samples, namely class VIII A which consisted of 31 students as the control class and VIII B which consisted of 31 students as the experimental class. The sampling technique used is Cluster Random Sampling. Variable measurement uses a test in the form of a description of 5 questions which are tested for validity and reliability first. Data analysis uses simple statistical analysis with t_tesformula. Based on the results of hypothesis testing using t_tes, it is obtained t_hit = 5.74 and from the distribution table at a significant level of 5% with t_daf = t(1-α) = 1.67 so that it is known that t_tes > t_daf or can be written 5.74 > 1.67 . Thus it can be concluded "there is an influence of the Creative Problem Solving (CPS) model on the ability to solve mathematical problems in Grade VIII students of Even Semester SMP Negeri 31 Bandar Lampung for the 2022/2023 academic year”.

PENGEMBANGAN LKPD BERBASIS CONNECTING, ORGANIZING, REFLECTING AND EXTENDING (CORE) UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PADA MATERI BANGUN DATAR (SEGITIGA DAN SEGI EMPAT) SISWA KELAS VII UPT SMP NEGERI 32 BANDAR LAMPUNG

Yeni — 2023-06-23

This research was conducted to develop LKPD based on Connecting, Organizing, Reflecting and Extending (CORE) to facilitate mathematical problem solving abilities on flat shapes (triangles and rectangles) for class VII students of SMP Negeri 32 Bandar Lampung. Research and Development (R&D) is the category of development research used, and the development model used is Analysis, Design, Development, Implementation and Evaluation. Based on validation data, media experts obtain an average score of 4.38, linguists obtain an average score of 4.71, and material experts obtain an average score of 4.69 using the "Valid" criterion. The subject instructor's responses to LKPD got an average score of 4.67 with the "Practical" criteria, while student comments got an average score of 4.30 with the "Interesting" category. The results of the LKPD test show that the average student score is 76.41, exceeding the KKM, which is 70, and the student's completeness achievement is 82.35% in the "Effective" category. As a result, the teaching materials are in the form of Connecting, Organizing, Reflecting and Expanding (INTI)-based worksheets to facilitate the ability to solve mathematical problems on solid material (triangles and rectangles), so that they are declared valid, useful and interesting.

PENGEMBANGAN VIDEO PEMBELAJARAN PADA MATERI TRIGONOMETRI UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS X SMA ADIGUNA BANDAR LAMPUNG

Mohammad Rizduan — 2023-06-23

This research aims to: 1) determine the feasibility of animated video-based learning media for class teaching materials, and 3) knowing the effectiveness of Animation Video-Based Learning Media in Class X Trigonometry Materials in improving mathematical problem solving abilities. This research is research and development using the ADDIE model. Validation results of Animation Video Based Learning Media material on Class X Trigonometry Materials obtained a value of 4.14, media validation obtained a value of 4.78, and language validation obtained a value of 4.30, all of which are "Valid" criteria. The results of the student response questionnaire obtained an average value of 4.02 with the "Interesting" criteria, and the results of the teacher's response questionnaire obtained an average of 4.66 with the "Practical" criteria. The completeness of student learning which describes the ability of students' problem solving is categorized as "High" with level of student mastery of 81%. It can be concluded that product development is feasible to use as learning media.