The learning environment by relying on lectures and practice in class causes students to have a tendency to forget so that it can cause a lack of understanding ability, in fact, the understanding ability is a learning challenge to face the needs of the industrial revolution 4.0. The purpose of this research is to find out whether the achievement and improvement of understanding of students who learn with Camtasia-assisted learning videos are better than students who learn by not using learning videos. The method used is a quasi-experiment and the design used is a non-equivalent control group design. Samples were taken two classes purposively. The selected research sample consisted of two classes, 32 students from the experimental class and 48 students from the control class. The research instrument used was a comprehension ability test. The results of the study found are the achievement and improvement of understanding of students who learn with Camtasia-assisted learning videos better than students who learn by not using learning videos.

Analisis korespondensi ordinal merupakan sebuah analisis multivariat untuk memetakan tingkat kepuasan produk atau tingkat pelayanan jasa dalam sebuah grafik. Analisis ini mengkombinasikan penguraian singular dari analisis korespondensi klasik  dan polynomial orthogonal melalui penguraian momen bivariate. Penggabungan kedua fitur tersebut berfungsi untuk mengakomodasi struktur urutan dalam skala ordinal, sehingga informasi dari variabel-variabel ordinal tersebut dapat diukur.

The purpose of this study was to determine the opportunities, capital and income of the slang juice business in the city of Serang. This study aims to find out the opportunities that are used as a reference to get the idea of ​​opening juice slang, to get the first capital and develop a juice slang business in the city of Serang, the amount of daily and monthly income for slang juice, the number of juice slang outlets spread across the city and district. This research method uses qualitative research methods with data collection techniques using observation, interviews and documentation techniques. Then presented descriptively. The analysis used is a SWOT analysis to formulate a strategy based on logic that can maximize strengths and opportunities but simultaneously minimize weaknesses and threats. The results showed that based on the results of the SWOT strategy to develop a slang juice business, maintaining and improving product quality, maintaining selling prices, and creating product innovations, then the material capital collected came from personal savings, asset sales and bank loans. which increased significantly from 2016 to 2020