The Faculty of Mathematics Education at Yogyakarta State University (UNY) once again held an advanced technical guidance session (Bimtek) on mathematics learning through a deep learning approach in collaboration with the Mathematics Teachers' Working Group (MGMP) of Kulon Progo District Junior High Schools. The second event day was held on August 21, 2025, at SMPN 1 Pengasih, Kulon Progo. The event opened with a speech from the Head of the Kulon Progo Junior High School Mathematics MGMP, Mr. Sudaryanta, S.Pd., who expressed his appreciation for the continuation of this activity. He emphasized the importance of this technical training to enrich learning strategies and deepen understanding of the material through discussion of mathematics Olympiad questions. The speakers at this second meeting were Mrs. Husna 'Arifah, M.Sc., and Dr. Nikenasih Binatari, accompanied by three master's students.

The first session was started by Mrs. Husna Arifah, M.Sc., who discussed the statistics homework from the previous meeting. The homework included questions about probability, combinations, and data distribution relevant to strengthening basic statistical skills. Through discussion, the MGMP teachers were invited to reflect on their difficulties and find more effective solutions. Although most teachers were able to solve the problems using the correct procedures, there were still some minor errors. Ms. Husna then continued by providing more in-depth statistics material, specifically as preparation for coaching students for the National Science Olympiad (OSN). She emphasized the importance of mastering basic statistical concepts, including permutations and combinations, as these topics often appear in Olympiad questions that require data analysis and probability reasoning skills.

The next session was led by Dr. Nikenasih Binatari, an expert in the field of OSN, who presented material on Number Theory. Before starting the primary material, she held a simple ice-breaking activity with a quiz using Kahoot. This activity aimed to break the ice and inspire teachers to get used to utilizing technology in teaching and learning activities. The primary material covered the basic concepts of Number Theory, such as divisibility in integers, divisibility properties, factors, multiples, and prime numbers. Ms. Nikenasih explained in detail the divisibility rules, starting from divisible numbers by 2, 3, 5, and 11, accompanied by clear examples so that teachers could easily understand their application, both for classroom learning and Olympic training.

At the end of the session, Ms. Nikenasih gave another short quiz to evaluate the participants' understanding of the material that had been presented. This closing quiz served as a reflection tool for teachers to measure their mastery of the basic concepts of Number Theory, which will be the foundation for the OSN material. The second day's event concluded with the teachers filling out evaluation forms as input for improving the quality of future technical training activities. The entire series of activities ended with a prayer of thanksgiving, marking the successful conclusion of the technical training. (HnR)