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Basic calculation skills are essential for early mathematical learning; however, many students with intellectual disabilities experience persistent difficulties in mastering basic addition and subtraction. This study examined the effectiveness of structured counting strategies in improving calculation skills among first-grade students with intellectual disabilities in inclusive school settings. A 12-week intervention was implemented with eight students, supported by their classroom teachers, who received targeted training on five core counting strategies for addition and subtraction within 10. Instruction was delivered through individualized sessions using concrete and pictorial materials. Student performance was assessed before and after the intervention, and teachers’ use of counting strategies was also documented. Results showed substantial improvement in students’ calculation accuracy. Prior to the intervention, most students performed at very low levels (0-20% accuracy). After 12 weeks, five students achieved high proficiency levels (90-100% accuracy) in addition, and four students reached similar levels in subtraction. Strategies such as count-all and count-on from the first addend produced the greatest gains, while count-back remained the most challenging. Teachers also demonstrated increased frequency and flexibility in applying counting strategies. The findings suggest that explicit instruction in counting strategies can effectively support basic calculation development for students with intellectual disabilities and provide practical implications for teacher training and inclusive mathematics instruction.
The transition from preschool to primary education entails a critical shift from informal, play-based experiences to structured academic instruction, requiring careful preparation to ensure children’s readiness. Within this process, mathematics occupies a central role as both an abstract and practical discipline, characterized by logical rigor and precision while simultaneously offering indispensable tools for reasoning, scientific inquiry, and everyday problem-solving. Mathematical knowledge and methodologies not only support the acquisition of core mathematical competencies but also serve as foundational resources for learning across disciplines. Consequently, fostering mathematical readiness has become a pivotal objective of early childhood education. This article explores both theoretical perspectives and practical challenges associated with preparing kindergarten children for Grade 1 mathematics learning. Special attention is given to the foundational factors that shape children’s readiness, including cognitive, affective, and contextual dimensions. Methodologically, the study employs a comprehensive literature review of both national and international research to identify critical factors, highlight existing gaps, and synthesize effective practices. Based on this analysis, the article proposes a set of strategies aimed at equipping young learners to approach Grade 1 mathematics with confidence, curiosity, and enthusiasm, thereby contributing to a smoother and more effective transition into formal schooling.

