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Tia Ariska, Tia

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Author-ID : 506080

Earth & Planetary Sciences Education

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Articles

Community of Macrozoobenthos and Physical-Chemical Parameters in the Watas Hutan Lake, Tanjung Balam Village, Siak Hulu Sub-regency Kampar Regency, Riau Province Ariska, Tia; Fajri, Nur El; Sumiarsih, Eni
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Watas Hutan Lake is one of the oxbow lakes in the Kampar Regency. In the areas around the lake, there are activities such as oil palm, rubber and banana plantations. To understand the water quality in general, a research was conducted from April to May 2015. This research aims to determine the water quality of the lake based on physical and chemical characteristics and makrozoobenthos community structure. There were three stations, 3 sampling points/ station. Water samples were taken 3 times, once/ week. Parameters measured were abundance, uniformity and dominancy index of the macrozoobenthos and several water quality parameters such as temperature, turbidity, depth, total suspended solid, pH, dissolved oxygen, BOD5, nitrate, phosphate, substrate type, and organic materials. Results shown that there were 12 species (4 classes) of macrozoobenthos, with abundance 353 organisms /m2. There were Oligochaeta (4 species), Insects (3 species), Gastropods (3 species), and Bivalves (2 species). In general, the H' was 2.62-2.82; C was 0.17-0.19 and E was 0.79-0.85. Water quality parameters are as follows : temperature 29-300C, turbidity 4.00-6.30 NTU, depths 1.29-4.03 cm, TSS 4.00-5.30 mg/L, pH 5, dissolved oxygen 2.00-2.73 mg/L, BOD5 5.20-5.50 mg/L, nitrate 0.04-0.06 mg/L and phosphate 0.75-1.14 mg/L. The value of WQI-NSF index of the Watas Hutan Lake was 22.21-24.83, indicates that this river is badly polluted. There was muddy substrate with 39.03-42.20% organic materials content in each area. Based on the values of H’, C and E in the macrozoobenthos community, it can be concluded that the aquatic ecosystem in the Watas Hutan Lake is balance.Keyword: Watas Hutan Lake, Macrozoobenthos, Water quality, WQI-NSF

Model Sinektik Untuk Meningkatkan Kemampuan Analisis Matematis Pada Siswa MTS Ushuluddin Singkawang Ariska, Tia; Mariyam, Mariyam; Utami, Citra
Jurnal Derivat: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 1 (2020): Jurnal Derivat (Juli 2020)
Publisher : Pendidikan Matematika Universitas PGRI Yogyakarta

AbstractThis study aims to determine the improvement of students' mathematical analysis skills, individual and classical learning completeness, and student learning interest in the tangent material of the VIII class MTs Usshuludin Singkawang by applying the Synectic learning model. This study uses a Quasi-Experimental design using the Nonequivalent Control Group form, the population in this study are all classes of VIII MTs Usshuludin Singkawang consisting of 5 classes totaling 149 people. The sample was taken using the Random Sampling Cluster technique, while the sample consisted of two classes, namely class VIII B (29 students) as an experimental class and class VIII D (30 students) as a control class. The data analysis technique used was the 1 sample t-test to calculate individual completeness, the proportion test to calculate classical completeness, the two independent sample t-tests to calculate differences in mathematical analysis ability improvement, and the one variable t / z test to calculate student interest in learning. The results showed: 1) There was mastery learning both individually and classically that got direct learning using synectic models, 2) There was a difference in the improvement of students 'mathematical analysis skills, the increase in the experimental class was higher than in the control class, 3) The students' interest in learning after being applied to learn using synectic learning models can reach more than 70% of the ideal value.Â Keywords: Synectic Learning Model, mathematical analysis ability, mastery learning, student interest in learning

Model Sinektik Untuk Meningkatkan Kemampuan Analisis Matematis Pada Siswa MTS Ushuluddin Singkawang Ariska, Tia
Jurnal Derivat: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 1 (2020): Jurnal Derivat (Juli 2020)
Publisher : Pendidikan Matematika Universitas PGRI Yogyakarta

AbstractThis study aims to determine the improvement of students' mathematical analysis skills, individual and classical learning completeness, and student learning interest in the tangent material of the VIII class MTs Usshuludin Singkawang by applying the Synectic learning model. This study uses a Quasi-Experimental design using the Nonequivalent Control Group form, the population in this study are all classes of VIII MTs Usshuludin Singkawang consisting of 5 classes totaling 149 people. The sample was taken using the Random Sampling Cluster technique, while the sample consisted of two classes, namely class VIII B (29 students) as an experimental class and class VIII D (30 students) as a control class. The data analysis technique used was the 1 sample t-test to calculate individual completeness, the proportion test to calculate classical completeness, the two independent sample t-tests to calculate differences in mathematical analysis ability improvement, and the one variable t / z test to calculate student interest in learning. The results showed: 1) There was mastery learning both individually and classically that got direct learning using synectic models, 2) There was a difference in the improvement of students 'mathematical analysis skills, the increase in the experimental class was higher than in the control class, 3) The students' interest in learning after being applied to learn using synectic learning models can reach more than 70% of the ideal value.Â Keywords: Synectic Learning Model, mathematical analysis ability, mastery learning, student interest in learning

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