Practice materials for vertical calculations, measurement units (meters, grams, hours), and simple word problems.
Instructional strategies for introducing mathematical concepts like rays, segments, and angles. Key Educational Standards by Grade Practice materials for vertical calculations
If you are looking for these materials, they are often hosted on Bulgarian educational portals such as Ucha.se or official resource sites like the Ministry of Education and Science. For specialized versions adapted for international use, sources like Archi-Math offer English-translated Bulgarian math textbooks. measurement units (meters
Step-by-step guides for teaching core topics such as natural numbers, arithmetic operations (addition, subtraction, multiplication, division), and basic geometry. arithmetic operations (addition
Detailed syllabuses from the Ministry of Education and Science (MES) for each grade (1–4).