40 research outputs found
PENGARUH MODEL PEMBELAJARAN CREATIVE PROBLEM SOLVING BERBANTUAN MEDIA MAPLE 11 TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS
No full textLack of mathematical problem solving ability of students in Bandar Lampung MAN 2 due learners trouble completing math problems and students rarely ask questions or express ideas workmanship. This study aims to determine the effect of mathematical problem solving ability of student who take the learning by using the Creative Problem Solving learning model the students who take the Creative Problem Solving learning model which aided media Maple 11 and students who follow conventional teaching methods conducted by researchers at the students of class XI the MAN 2 Bandar Lampung.
This research is a quantitative type of experimentation with Quasy Experimental Design. In this study a total population of 121 students with sampling techniques in this study using a sample saturated. Based on calculations, after the hypothesis test using ANOVA obtained Fobservasi of 10,54. If the value is compared with the value Ftabel of 3,07, it can be concluded that Fobservasi ≥ Ftabel, so the hypothesis H0 is rejected and H1 accepted, which means that there are significant CPS assisted learning Maple 11 on problem solving skills of learners
Penentuan Harga Opsi Put Amerika dengan Simulasi Monte Carlo
No full textAn American option is an option that can be exercised at the strike price anytime before or on the date of expiration. In this thesis, Monte Carlo simulation for valuation of American option is presented. Monte Carlo simulation is one of the numerical methods used to determine the price of American options. The simulation provides several examples of initial stock price , rate of interest , exercise time , volatility , and strike price K. The simulation study shows the cost of the option c decreases when S increases, c decreases when r increases, c increases when T increases, c increases when increases, and c increases when K increases.Kontrak opsi (selanjutnya disebut opsi) adalah suatu jenis kontrak antara dua pihak, satu pihak memberi hak kepada pihak lain untuk menjual atau membeli aset tertentu pada harga dan periode waktu tertentu. Aset tertentu dalam penelitian ini adalah saham. Pada dasarnya ada dua tipe opsi, yaitu opsi put dan opsi call. Opsi put adalah kontrak yang memberikan hak kepada pemiliknya untuk menjual sejumlah aset. Sedangkan opsi call adalah kontrak opsi yang memberikan hak kepada pemiliknya untuk membeli aset. Penggunaan hak untuk menjual atau membeli saham dalam kontrak opsi dikatakan sebagai tindakan eksekusi. Berdasarkan waktu eksekusinya, kontrak opsi dibedakan atas opsi Amerika yakni kontrak opsi yang dapat dieksekusi kapanpun antara tanggal pembelian sampai dengan tanggal jatuh tempo (expiration date) dan opsi Eropa yakni opsi yang hanya dapat dieksekusi pada saat tanggal jatuh tempo. Harga opsi Eropa dapat ditentukan dengan menggunakan formula Black-Scholes yang merupakan solusi analitik dari persamaan Black-Scholes, namun untuk opsi Amerika belum terdapat solusi analitik, sehingga penelitian-penelitian yang selama ini dilakukan untuk menentukan harga opsi Amerika adalah menggunakan pendekatan numerik. Salah satu metode numerik yang digunakan untuk menentukan harga opsi Amerika adalah simulasi Monte Carlo. Metode ini merupakan metode alternatif berbasis teknik simulasi. Dimulai dengan persamaan pemrograman dinamis tradisional, yang menyampaikan gagasan bahwa harga opsi Amerika adalah masalah mengetahui pada setiap titik waktu, apakah opsi akan dieksekusi atau tidak. Tantangan utamanya adalah menentukan kapan akan melakukan eksekusi tersebut. Metode yang dipakai di sini mentransformasikan persamaan pemrograman dinamis ke masalah dualnya, dan akhirnya mencoba untuk menyelesaikan secara numerik. Berdasarkan hal tersebut, maka penelitian ini bertujuan menentukan harga opsi put Amerika dengan simulasi Monte Carlo
Analisis Proses Berpikir Siswa dalam Memecahkan Masalah Matematika berdasarkan Langkah-Langkah Bransford dan Stein ditinjau dari Adversity Quotient
No full textThis study aims to describe the thinking process of students of MAN I Bandar Lampung based on Adversity Quotient (AQ) type climbers, campers and quitters in solving mathematical problems based on Bransford and Stein theories on equations and quadratic functions. This research is a qualitative descriptive research. Research subjects were determined through purposive sampling, and this research was conducted in class X MIA 4 MAN I Bandar Lampung with subject of 6 students divided into 3 groups. The first group consisted of 2 students of type climbers, the second group consisted of 2 students of campers, and the third group consisted of 2 students of type quitters. To determine the type of Adversity Quotient (AQ) of the subject to be selected, the ARP test is used. The data collection technique in this study uses the test method, unstructured interview method conducted on selected subjects and documentation method. Data analysis techniques through data reduction, data presentation, and conclusions. Written test result data is analyzed based on indicators that meet conceptual, semiconceptual, and computational thinking processes. The technique of data validity is done by using triangulation technique comparing data of test result and interview result to subject of climbers, campers and quitters. Based on the data analysis results obtained that the subject with the type Adversity Quotient (AQ) each has a different thinking process. Subjects with type climbers tend to have a conceptual thinking process in solving mathematical problems based on Bransford and Stein theories. Subjects with type campers tend to have a semiconceptual thinking process in solving mathematical problems based on Bransford and Stein theories, and subjects with type quitters in solving problems based on Bransford and Stein theories tend to have a computational thinking process
Bibliometric analysis: Spatial skills and gender in education
No full textSpatial skills, the ability to perceive, understand, and manipulate shapes and spatial relationships, are fundamental to human cognition and have a significant impact on success in STEM (Science, Technology, Engineering, and Mathematics) career. The purpose of this study is to analyze the scientific research related to spatial skills and gender in education on Scopus database. This research also reveals the current research trends and research gaps on this subject. Bibliometric analysis is used to answer those objectives, with platforms such as R packages (Bibliometrix) and Vos Viewer software to help the analysis. This study addresses four research issues as follows: (i) the landscape of research on spatial skills and gender; (ii) the leading countries and institutions on spatial skills and gender research; (iii) the most cited journal; and (iv) the most cited authors; (v) the most cited articles; (vi) the most popular and least popular keywords
Daily Profit Analysis: Daily Productivity Scheduling with Multiple Linear Regression
No full textThe purpose of this study was to see which day factors (Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday) had the greatest impact on the net income of a store. The method used is a quantitative method using multiple linear analysis. The results show that Monday is the most influential on profit
Pengembangan Media Pembelajaran Matematika dengan Macromedia Flash
No full textThe purpose of this research is to develop math learning media using Macromedia flash application program. The development procedure used is Borg and Gall procedure which has been modified by Sugiyono. The procedure used is limited to only 7 steps from 10 steps: potential and problem, information gathering, product design, design validation, design improvement, small and large scale test until product revision. This study produces a mathematics learning media that has been declared valid and fit to be used as a whole as a medium of learning by 3 Expert material who scored an average of 3.67 and 2 media experts who scored an average of 3.59 with each score the maximum of validity is 4. While the attractiveness test of instructional media is stated "Very Interesting" by small group test which gets average score 3,4 and big group test with average score 3,8 with each score maximize attractiveness is 4. So it can be concluded that the development of instructional media produced is considered feasible and can be used as a medium of mathematics learning
ANALISIS JUMLAH PASIEN MENGGUNAKAN EXPONENTIAL SMOOTHING TERHADAP EFISIENSI RAWAT INAP BERDASARKAN GRAFIK BARBER JOHNSON
No full textPenelitian ini bertujuan untuk menentukan model matematika terbaik yang dapat digunakan untuk menghitung tingkat efisiensi rawat inap selama dua tahun kedepan menggunakan metode exponential smoothing dan memprediksi jumlah pasien selama dua tahun kedepan berdasarkan grafik Barber Johnson di Rumah Sakit Pertamina Bintang Amin. Penelitian ini menggunakan data pasien dari bulan Januari 2017 sampai bulan Agustus 2021 dan empat bulan data Sensus Harian Rumah Sakit (SHRI). Perhitungan jumlah pasien dua tahun kedepan dari bulan September 2021 sampai bulan Agustus 2023 menggunakan aplikasi Studio dengan metode exponential smoothing, sedangkan metode grafik Barber Johnson untuk menentukan titik efisiensi rawat inap menggunakan microsoft excel. Model matematika yang diperoleh dari analisis data adalah dengan hasil ramalan jumlah pasien menggunakan exponential smoothing selama dua tahun kedepan dengan rata-rata 466 pasien dan grafik Barber Johnson yang menentukan titik efisensi rawat inap per bulan. Nilai rata-rata tempat tidur terpakai selama dua tahun kedepan adalah 35,46%, maka selama dua tahun kedepan tingkat efisiensi rawat inap tidak efisien kerena nilai rata-rata keterpakaian tempat tidur selama dua tahun kedepan tidak mencapai 70%
SAVI and DLPS learning models on mathematical problem solving
No full textProblem-solving ability is an skills related to mathematical characteristics which instructors need to encourage educators to be able to solve problems. This process certainly uses the right learning model to reach the target in accordance with the curriculum. This study aims to compare the influence of Somatic, Auditory, Visualization, and Intellectually (SAVI) and Double-loop Problem-solving (DLPS) methods in influencing mathematical problem solving skills. This study uses quantitative types with data analysis techniques using the T test. The results of this study are that there is an average value in the SAVI learning model of 77.7 while the average value of the DLPS learning model is 77.3. The conclusion can be drawn that the SAVI and DLPS learning models have the same effect on problem solving skills.
The optimal portfolio of islamic stocks using the markowitz and black-litterman models
No full textThe portfolio with the best combination of profit and risk or the investor's choice is called the optimal portfolio. The Black-Litterman and Markowitz models were used to determine the optimal portfolio during the covid-19 pandemic. Sharia stock data, that is consistent with the Jakarta Islamic Index for the 2019-2021 period, is used in this research. The stock combination of the Markowitz model is better than the Black-Litterman model. The expected value of the portfolio obtained is 0.0066, which is greater than the risk-free asset return of 0.0011 on the day of broadcast. The portfolio risk of the Markowitz model is smaller than the Black-Litterman model, which are 0.0010972 and 0.0013917, respectively. so it can be said that the Markowitz model is better than the Black-Litterman model in the formation of a Sharia stock portfolio during the covid-19 pandemic
Penerapan Pendekatan Jelajah Alam Sekitar untuk Meningkatkan Penguasaan Konsep Ekosistem Siswa
No full textPendekatan Jelajah Alam Sekitar merupakan suatu pendekatan pembelajaran yang menggunakan lingkungan sekitar peserta didik sebagai objek belajar biologi yang fenomenanya dapat dipelajari melalui kerja ilmiah. Materi ekosistem merupakan materi biologi kelas X yang membutuhkan pengamatan secara langsung agar siswa lebih memudahkan memahami konsep tentang ekosistem. Penerapan metode jelajah alam sekitar bertujuan untuk memberikan pengalaman belajar yang menarik bagi siswa dan dapat memudahkan siswa dalam memahami konsep tentang ekosistem. Keefektifan penerapan metode pendekatan jelajah alam sekitar dapat dilihat dari nilai LKPD yang diperoleh kelas X IPA 2 yakni nilai tertinggi yaitu 85 menunjukan bahwa pemahaman siswa sangat baik dan nilai terendah yaitu 40 yang disebabkan karena kurangnya motivasi belajar siswa. Pemanfaatan lingkungan sekitar sekolah di SMAN 1 Gunungsari sebagai sumber belajar yang mampu meningkatkan pemahaman siswa dalam mempelajari materi khususnya dalam pembelajaran biologi
