Desa Sumbereja Wetan yang terletak di kecamatan ngunut, kabupaten tulungagung. Masalah yang terjadi adalah mengenai besarnya biaya pengiriman atau distribusi hasil produksi tas pos pada UMKM. Metode yang di pergunakan dalam masalah ini yaitu metode Vogel’ Approximation Method (VAM), dengan program Quantitatif Manajemen (QM). Metode ini digunakan untuk mengatur distribusi dari sumber-sumber  yang menyediakan produk yang sama, ke beberapa tempat tujuan yang membutuhkan transportasi secara optimal. Hasil penelitian ini diperoleh bahwa dengan menggunakan cara lama akan mengeluarkan biaya lebih banyak sebesar Rp. 46.330.000,-, sedangkan jika menerapkan metode transportasi dengan menggunakan metode VAM/software QM biayanya menjadi sebesar  Rp. 39.220.000,-. Sehingga dengan adanya metode VAM dengan software QM lebih efektif dan dapat menghemat biaya pengiriman sebanyak 18 %.

Class climate plays a dual role as a dependent and independent variable. As a dependent variable, the class climate is influenced by several variables. On the other hand, as an independent variable, the class climate is correlated with other variables. This research aims to confirm the studies that have been done before and ensure that these related variables must be increased or become the impact of increasing the classroom climate. This type of research is a literature study that explores more than 40 articles about classroom climate conducted in Indonesia and other countries. The data analysis technique used is descriptive qualitative analysis. The results of this study indicate that among the variables that influence or contribute to classroom climate are simulation strategies, student attitudes, teacher behaviour, and integration between media and learning approaches. Variables that are affected by classroom climate include student behaviour, student achievement, student motivation, learning outcomes, and bullying behaviour. Therefore, teachers and principals are recommended to increase the variables that affect classroom climate and the classroom climate itself because they will also affect other variables. This study convinces the reader that classroom climate is an intermediary variable which is a key factor for improving the learning process.