The article examines motor development as an essential component of school readiness and emphasizes its direct relevance to preschool and early school teaching practice. School readiness is presented as a multidimensional construct that includes cognitive, emotional, social, and physical domains, while motor competence is treated not merely as a sign of physical maturity but as a functional condition for effective learning. The authors underline the close relationship between motor, cognitive, emotional, and social development, showing that difficulties in posture, muscle tone, gross and fine motor skills, sensory integration, and body schema may influence attention, graphomotor abilities, classroom behavior, self-esteem, and the child’s adaptation to school requirements. Particular attention is paid to observable motor behaviors that may indicate reduced readiness for school, including rapid fatigue, fidgeting, clumsiness, reluctance to draw or write, excessive movement, withdrawal, and the need for intense sensory stimulation. The article stresses the important role of teachers as everyday observers of children’s functioning in natural educational settings. Their awareness of motor indicators may support early recognition of developmental risks and timely referral for specialist consultation, especially physiotherapeutic assessment. The paper also presents practical strategies that teachers can use without specialized training, such as movement breaks, manipulative exercises, body-schema activities, classroom tasks involving movement, and ergonomic adaptation of the child’s workstation. The authors conclude that motor development should be regarded as an integral element of school readiness and that cooperation between teachers, parents, physiotherapists, pediatricians, and psychologists is necessary to support the harmonious development of the child and prevent future learning difficulties. Keywords: motor skill development, school readiness, preschool education, gross motor skills, fine motor skills, postural control, sensory integration, teaching practice.