Penelitian ini bertujuan untuk menganalisis kemampuan pemecahan masalah matematis siswa  materi segiempat dan segitiga berdasarkan tahapan Polya. Subjek dalam penelitian ini adalah siswa kelas VIII J SMPN 1 Kotabaru Tahun Ajaran 2019/2020, yang dikelompokan menjadi 3 kategori yakni tinggi dengan Skor ≥ Mean + 1 SD, kategori sedang M – 1 SD ≤ Skor < M + 1 SD, dan kategori rendah dengan Skor < M – 1 SD. instrumen yang digunakan dalam penelitian ini adalah tes dan wawancara. Hasil penelitian menunjukkan bahwa siswa kategori kemampuan tinggi sudah mampu memecahkan masalah yang diberikan, tetapi kurang teliti dalam menuliskan kesimpulan dari solusi yang diinginkan serta kurang teliti dalam menuliskan satuan. Siswa kategori kemampuan sedang belum mampu memecahkan masalah yang diberikan karena hanya mampu memahami masalah dan merencanakan penyelesaian, siswa mengalami kesulitan dalam melakukan proses perhitungan/komputasi serta kurang teliti saat mengerjakan. Siswa kategori kemampuan rendah belum mampu memecahkan masalah yang diberikan karena siswa mengalami kesulitan dalam memahami masalah, sehingga tidak mampu melakukan tahapan selanjutnya.

No abstract

Cacaban Reservoir is located in the Kedungbanteng District, Tegal Regency, Central Java. The Cacaban Reservoir is a place with various anthropological disturbances such as domestic activity, industrial activity, and other activities that have a negative impact on water resources and can reduce water quality. One way to find out the quality of the waters is based on the analysis of coliform bacteria. This research aimed to determine the water quality of the Cacaban Reservoir based on microbiological parameters, and determine the status of the waters of the Cacaban Reservoir based on the Pollution Index. The method used is a survey method, while the sampling method is purposive sampling at 3 stations (dock, inlet, and cages) with 2 sampling times per station. The parameters observed were coliform and fecal coli with supporting parameters, namely pH, temperature, and Total Dissolved Solid (TDS). The analysis was carried out based on microbiological parameters according to the standards of SNI 06-4158-1996 and the status of Cacaban Reservoir based on the Pollution Index according to the Minister of Environment Decree Number 115 of 2003 concerning Guidelines for Determining Water Quality Status. The Cacaban Reservoir waters have temperature ranging between 29,2 -32,6˚C, TDS 137 -156 mg/l, pH 6, total Coliform 565 -2850 CFU100 mL, dan fecal coli 0 -425 CFU/100 mL. The status of pollution at Cacaban Reservoir (inlet, dock, and cage) is in good condition and meets quality standards.

Chronic Energy Deficiency (CED) is the poor nutritional status of a person is caused by the lack of consumption of food sources of energy that contain macronutrients that lasts long or years. CED in pregnant women will cause problems for both mother and fetus. There are several factors that can cause CED in pregnant women including age, family income, food expenditure, etc. This study aims to determine the relationship age, family income, and food expenditure with CED in pregnant women in Makassar city on 2020. This study was conducted on 104 people. To detect CED in pregnant women by measuring the mid upper arm circumference (MUAC) using MUAC ribbon. Age, family income, and food expenditure are measured using questionnaires of modification from national social economic survey on 2017, and univariate analyses and bivariates using SPSS 24. The results of the study showed the relation of age with CED in pregnant women obtained significant value (p value = 0,305), relation of family income with CED in pregnant women obtained significant value (p value = 0,270), and relation of food expenditure with CED in pregnant women obtained significant value (p value = 0,452). There aren't relationship age, family income, and food expenditure with CED in pregnant women in Makassar city on 2020.