This research aims to find out how to apply the Realistic Mathematics Learning (RME) approach so that it can improve student learning outcomes in learning large whole number mathematics. This type of research uses Classroom Action Research (PTK). The subjects of this research were 19 class IV students at SD Negeri 1 Gumul in the odd semester of the 2023/2024 academic year. The instruments used are observation sheets, documentation, and student learning outcomes tests. The results of this research show that there is an increase in student learning outcomes by using teaching aids to explain mathematics learning about large whole numbers. Student learning outcomes can also be improved by reminding them of the material from previous meetings and linking learning to everyday (real) life.
 Keywords: Learning outcomes; RME.

Differences in the social strata of parents of students will of course also have different methods of educating children, high social strata have more established resources and better knowledge in educating their children, thus causing differences in the pattern of social interaction of children in social interaction at school. This study aims to determine the influence of parents' social strata on the social patterns of fifth-grade students at Islam Darussalam Elementary School in Gegerung Village, Lingsar District, West Lombok Regency. The type of research used is field research with a quantitative approach. Sampling was carried out using a census technique using 28 respondents as a sample. Data analysis methods used are validity test, reliability test, classic assumption test, linear regression analysis, and hypothesis testing. The results of the research show that first, the form of social strata of the parents of fifth-grade students at Islamic elementary school is a form of open social stratification. Second, the pattern of association of students at school is more personal communication, solidarity and mutual cooperation are still strong because they come from the same ancestry. The social strata of parents have a significant effect on the social patterns of fifth-grade students.

This research aims to increase student creativity through the Inquiry Learning Model in class IV social studies content at MI NW Dasan Agung. The type of research used is classroom action research (PTK), which is carried out in 2 cycles, each cycle consisting of 2 meetings and going through several stages such as the planning stage, action stage, observation stage. and reflection (reflecting). while data collection techniques use Observation Sheets, Questionnaires, and Documentation. The results of this research show that the use of the Inquiry Learning Model can increase student creativity. This can be seen from the results of the questionnaire data obtained by students, student creativity using the Inquiry Learning Model has increased from cycle I to cycle II, in cycle I the percentage obtained reached 47.26%, while after improvements were made in cycle II, then the percentage obtained was 89.9% in the very good category. so it is clear that the application of the Inquiry Learning Model in social studies content can increase the creativity of class IV students at MI NW Dasan Agung, Mataram City.