Https://download.pomagalo.com/1338742/d ... /?s... May 2026

This pedagogical thesis from Burgas Free University evaluates first-grade arithmetic proficiency in addition and subtraction up to 20, emphasizing the development of logical thinking and active mental synthesis in students. The diagnostic method highlights using visual aids, varied problem types, and mental speed assessment to transition learners from concrete to abstract mathematical reasoning. For the full guide, visit Pomagalo .