In Early Years Education, developing strong mathematical foundations is key to ensuring long-term success. This term, in FS1, we have focused on Mastery Maths, with particular emphasis on the CPA (Concrete, Pictorial, Abstract) approach, which provides a structured pathway for young learners to develop strong mathematical foundations. Children begin with hands-on activities using real objects (Concrete), progress to drawing and visual representations (Pictorial), and eventually move towards understanding numbers and concepts without physical aids (Abstract). This progression is supported by engaging activities such as sorting, counting, using ten frames, and mark-making. To deepen understanding, teachers encourage problem-solving and reasoning through open-ended questions and tasks, ensuring children not only learn mathematical concepts but also develop critical thinking skills. By embedding CPA principles and meaningful challenges, FS1 students build confidence, number fluency, and a lasting love for maths.