Analysis of the preliminary research phase as the basis for developing a biology practicum guide based on a scientific approach. The purpose of this study was to describe the initial research stage data obtained as a basis for developing teaching and learning materials based on research results that will be made in the future. The development model applied in this study is the Plomp model, which has reached the initial data investigation stage. Instruments for collecting data include interviews, observations, and questionnaires. The results of the student needs questionnaire revealed that students agreed that it was necessary to develop a practicum guide based on a scientific approach with a percentage of 94.73%. The teaching materials that have been used in learning are less effective so that students are less able to understand the subject matter. So it can be concluded that it is necessary to develop teaching materials for practicum guides based on a scientific approach on the material of the circulatory system and respiratory system in class XI SMAN 15 Pekanbaru.

This research discusses the implementation of compliance for trade service employees which is being re-implemented for the community in connection with the rise of street vendors in the South Sumatra province. The research method used in this research is a qualitative research method. Qualitative research methods are research methods that prioritize social phenomena and provide evidence that is socially coherent and specific in relation to the cases or phenomena that occur. The problems studied in qualitative research are relatively clearer and easier to understand because case studies prioritize real events that occur in the community. The research results show that the implementation of the level of compliance among trade service employees is still relatively lacking. This is because the trade department is still not specific and active enough to remind the public regarding the trading process within the South Sumatra provincial department which still trades anywhere. The follow-up carried out by the trade service is still relatively in the form of a warning. Apart from that, employees in the area or environment of the South Sumatra provincial trade office are still lacking in implementation regarding the prohibition on carrying out trading actions that can damage public facilities, trade on the street, fill sidewalks and also eliminate the comfort of other people regarding pedestrians.