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Aspects of cognitive development. is one of the important developmental aspects for early childhood. There are several skills that need to be improved in cognitive development. One of them is the ability to count. Numeracy is the ability to know the number or number of objects. The purpose of this study is to find out the ability to count by applying book media, the ability to count by applying the media of number cards and the difference in the ability to count by applying  the media of activity books and the media of number cards. This study is a quantitative research with a quasi-experimental  type of research using an unequal control group design. The population includes all students at Nurul Fikri Bonto Majannang Kindergarten consisting of groups A, B1, and B2 with a total of 51 students. The samples used were groups B1 and B2 as many as 30 students with a sample technique, namely purposive sampling. The instrument used is the observation sheet guidelines. The analysis technique uses descriptive and inferential analysis. The results showed that children's numeracy ability by applying activity book  media in the experimental group significantly improved with an average pretest score  of 23.87 while a posttest  score of 36.53. The results of children's numeracy skills by applying number card media in the control group have increased, although not as large as the experimental group which received treatment in the form of activity book  media with an average pretest score  of 23.07 while the posttest  score was 29.07. When compared with  the posttest  scores of the experimental group and the control group, it can be concluded that there is a difference in numeracy ability by applying activity book media and number card media to group B children at Nurul Fikri Bonto Majannang North Galesong Kindergarten, Takalar Regency.