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All Journal LEMMA: Letters Of Mathematics Education Dinasti International Journal of Economics, Finance & Accounting (DIJEFA)
Feriatna, Troynanda
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Economics, Econometrics & Finance Education

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PENGEMBANGAN APLIKASI ANDROID SEBAGAI MEDIA PEMBELAJARAN MATEMATIKA PADA MATERI PELUANG UNTUK SISWA SMA KELAS X Feriatna, Troynanda; Pramuditya, Surya Amami; Aminah, Neneng
JURNAL LEMMA Vol 4, No 1 (2017): LEMMA : Letters of Mathematics Education
Publisher : Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.193 KB) | DOI: 10.22202/jl.2017.v4i1.2378

Abstract

AbstractUsing mathematics instructional media in schools is still very limited, this resulted in low levels of student understanding. One of the materials that concern is a probability in Class X. The solution for this problem is by providing instructional media on probability. The purpose of this research is to design valid and practical instructional media on probability material. This research is R & D (Research and Development) method and designing using ADDIE model which simplifies to ADD. The instruments are interview guides, validation, and practical sheets. Instructional media based on educational games at tenth grade has a percentage of validity 96.4%. Hence, this media is valid. Value of practicality on each level of ability, for students with high ability 95.3%, for students with average and low ability has the same value of 92.7% then this educational game is declared practice.Keyword: instructional media, RPG, ADDIEAbstrakPenggunaan media pembelajaran matematika di sekolah masih sangat terbatas, hal ini mengakibatkan tingkat pemahaman siswa masih rendah. Salah satu materi yang menjadi perhatian adalah materi peluang di Kelas X. Salah satu solusi yang dilakukan untuk mengatasi hal tersebut adalah dengan menyediakan media pembelajaran pada materi peluang. Tujuan penelitian ini mendesain media pembelajaran pada materi peluang yang valid dan praktis. Penelitian ini merupakan penelitian dengan metode R&D (Research and Development) dan langkah dalam mendesain media pembelajaran menggunakan model ADDIE yang disederhanakan menjadi ADD. Instrumen yang digunakan adalah pedoman wawancara, lembar validasi dan lembar praktikalitas. Media pembelajaran berbasis game edukatif pada materi peluang kelas sepuluh, dengan presentase kevalidannya mencapai 96,4 % maka media ini dinyatakan valid. Nilai dari kepraktisan adalah pada tiap tingkat kemampuan,  untuk siswa yang berkemampuan tinggi 95,3%, untuk siswa yang berkemampuan sedang dan rendah memiliki nilai yang sama yaitu 92,7% maka game edukatif ini dinyatakan praktis.Kata kunci: Media pembelajaran, RPG, ADDIE.
Analysis Towards the Factors Relates to the Yield at Sharia Bond Which Listed on Indonesia Stock Exchange During Period of 2020 Feriatna, Troynanda; Marsoem, Bambang Santoso
Dinasti International Journal of Economics, Finance & Accounting Vol. 2 No. 6 (2022): Dinasti International Journal of Economics, Finance & Accounting (January - Feb
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijefa.v2i6.1060

Abstract

This research analyzes the influence caused by the debt equity ratio (DER), maturity, firm size and rating of Islamic bonds on the yield to maturity (YTM) from corporate Islamic bonds. The research population consisted of corporate sharia bonds traded at the Indonesia Stock Exchange during period of 2020. The sample choosen technique was performed by purposive sampling. The research sample consisted of 59 corporate bonds that issued from 13 companies through all sectors except the banking and financial sectors. The research analysis method used descriptive statistics and multiple linear regression. The outcomes showed partially that the maturity variable had a significant positive affect to YTM, Rating had a negative affect on YTM, while DER and Islamic bond ratings had no affect on YTM. The research implication stated that companies need to increase their sharia bond ratings in order to maintain investor trust. For further research, it is expected to analyze other variables which had an impact to YTM because the coefficient of determination that reached from this research are 67%, while the remaining of 33% was determined by other variables which not explained in this research.
Co-Authors Marsoem, Bambang Santoso Neneng Aminah Surya Amami Pramuditya