Picture card media is a learning aid used to improve the ability to recognize number concepts. By using picture card media, children can easily visualize the concept of numbers and hone their ability to recognize numbers and count sequentially. This research aims to increase understanding of the concept of numbers 1-10 using picture cards as media. The inability to correctly identify the concept of numbers 1 to 10 was the driving force for this research. This research uses a type of classroom action research. Classroom Action Research is a research method carried out to improve and enhance learning outcomes in the form of cycles. In each class action research cycle, the teacher carries out planning, action, observation, reflection, and modification to achieve the set learning objectives. Twelve children will be research subjects. Data collection techniques involve observation and documentation. To convert data into percentages, data analysis techniques use qualitative and quantitative descriptive approaches. With picture card media, research results regarding increasing children's understanding of the numbers 1–10 can be improved. The results showed that before the action the child's ability to understand the concept of numbers 1-10 gained a percentage of 16.67%. Then it increased to 50% in Cycle I and continued to increase to 83.33% in Cycle II. These results support that picture cards are a useful medium for teaching the concept of numbers 1-10. Picture card media can be used as an alternative to improve the ability to recognize the concept of numbers 1-10.