enelitian ini bertujuan untuk mengetahui perbedaan kemampuan berpikir tingkat tinggi antara siswa yang dibelajarkan dengan model project based learning (PjBL) dan siswa yang dibelajarkan dengan model konvensional yang ditinjau dari motivasi berprestasi. Penelitian ini merupakan quasi eksperiment dengan rancangan non equivalent control group. Data penelitian dikumpulkan dengan mengunakan instrumen tes kemampuan berpikir tingkat tinggi dan angket motivasi berprestasi. Hasil penelitian menunjukkan bahwa, (1) ada pengaruh yang signifikan model PjBL terhadap kemampuan berpikir tingkat tinggi, (2) ada pengaruh motivasi berprestasi terhadap kemampuan berpikir tingkat tinggi, dan (3) model PjBL dan motivasi berprestasi yang secara bersama-sama berpengaruh terhadap kemampuan berpikir tingkat tinggi.

This study aimed: (a) to determine the general water balance at the Upstream and Midstream of Bengawan Solo Watershed by using Thornthwaite-Mather model, and (b) to determine the fulfillment of domestic water demand in the Upstream and Midstream of Bengawan Solo Watershed. Prevailing climate change has affected the condition of water source in Upstream and Midstream of Bengawan Solo Watershed. One of the impacts was extreme fluctuation of meteorological water availability that might cause flood and drought. Survey was selected as the research method while descriptive quantitative method was used for data analysis. The findings indicated the difference between precipitation and corrected evapotranspiration (P-EP) at the Upstream and Midstream of Bengawan Solo Watershed was between (-11.19 mm) to (78.56 mm). The highest value was obtained by Bambang Sub-watershed and the lowest was Wiroko Temon Sub-watershed. Positive value indicated the water surplus while negative value indicated water deficit. Domestic water demand for local communities was in the range of 50,782,500 liters to 131,690,700 liters, and the level of water availability varied, namely fulfilled and unfulfilled.

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