Tujuan utama dari penelitian ini adalah untuk memperkirakan bagaimana variabel pendapatan dapat mempengaruhi pola pengeluaran konsumsi rumah tangga di Kota Medan pada tahun 2021. Data yang digunakan adalah data cross sectional (data menurut waktu) yang dikumpulkan dari 100 rumah tangga di seluruh Kota Medan. Sedangkan variabel yang akan diestimasi adalah pola konsumsi rumah tangga. Berdasarkan hasil estimasi dengan menggunakan metode regresi berganda menggunakan software SPSS 18, ukuran goodness of fit (R2) adalah 82,1%, variabel bebasnya adalah pola konsumsi rumah tangga (KRT) dan signifikan terhadap pendapatan rumah tangga (PRT). Sedangkan secara parsial konsumsi rumah tangga berpengaruh positif dan signifikan terhadap pendapatan rumah tangga di Kota Medan.

This study aims to examine efforts to improve student learning outcomes through demonstration methods in mathematics subjects with building materials in the form of blocks and cubes for fourth grade students of MIN Medan Tembung. This type of research uses classroom action research (CAR), with subjects covering 37 fourth grade students at MIN Medan Tembung. The results of this study conclude that the application of the demonstration method can improve the learning outcomes of fourth grade students at MIN Tembung in mathematics lessons on building materials (cubes and blocks). This is evidenced by the results of the student's pre-test which was originally low, namely 38.64 (none even completed according to the Minimum Completeness Criteria/KKM). The results of the final test in the first cycle that did not use the demonstration method (still conventional method) showed an increase, where 7 students had achieved the KKM score (18.9%) while the other 30 students had not reached the KKM (81.1%). Furthermore, the results of the final test in the second cycle that had used the demonstration method showed a significant increase, where there were 32 students (86.48%) who met the KKM and 5 students (13.52%) who had not reached the KKM.