The Future of Education
Studying Cases of Adding and Subtracting Numbers Up to 100 Without Crossing Over-Analysis of the Current State of Second-grade Mathematics Teaching Materials in Bulgaria
Petar Petrov, Plovdiv University “Paisii Hilendarski”, Bulgaria (Bulgaria)
Abstract
The latest reforms in the Bulgarian education system and the subsequent updates to the mathematics curriculum for grades 1–4 (general education) have led to the development and approval of teaching kits aimed at building sustainable mathematical competencies in students. In this regard, the Ministry of Education and Science (MES) has approved nine mathematics teaching kits for compulsory education in the second grade, developed by various teams of authors.
The purpose of this article is to analyze the theoretical frameworks that underpin the methodology for studying the global topic "Addition and subtraction of numbers up to 100 without crossing over" and to trace their implementation in the current mathematics teaching kits for the second grade of primary education. Emphasis is placed on the sequence of introducing new knowledge, the approaches used to clarify the algorithms for adding and subtracting numbers up to 100 without crossing over, and the means of illustrating them. With a view to optimizing the learning process and assisting teachers in planning and implementing their teaching, the study aims to highlight good practices and methodological solutions presented by the authors. It also aims to identify similarities and differences in the presentation of the global theme of mathematics in second grade.
Keywords: elementary math training; addition and subtraction of numbers up to 100 without going over
