This article discusses the outcomes of early childhood mathematics learning and the importance of numeracy and problem-solving skills. It provides teaching approaches and practices for children aged birth to 8 years, including learning to understand concepts of size, pattern, and shape, forward and backward counting, recognition of numerals, and one-to-one correspondence. It also covers number sense, representation, spatial sense, measurements, estimation, patterns, and problem-solving. The article further explores cognitive and developmental aspects of mathematical concepts and provides assessment and teaching pedagogies.