The use of instructional media, especially visual media, is very influential in student learning and learning outcomes. The teacher can develop visual learning media so that students can learn well fun and attract learning interest. Experts say that approximately 90% of one's learning outcomes are obtained through vision, 5% from hearing, and 5% from other senses. Development research aims to produce a valid leaflet-based learning media so that it is fit for use by students. This type of research was adapted from Tessmer's design, through the preparation stage (preliminary) and formative evaluation (formative evaluation) with stages only to self-evaluation, and expert testing. The expert opinion includes 3 validators according to expertise. Data was obtained from research instruments in the form of content/material validity evaluation sheets, and construct validity. Data collection techniques using assessment sheets. Analysis of data validity based on the Akbar category (2013). Based on the research results of the first meeting leaflet, the content validity value was 92.05%, and the construct validity was 98.61%. The second meeting leaflet obtained content validity value 92.65%, and construct validity 97.45%. So it was concluded that the learning media of the development leaflet was categorized as very valid.The use of instructional media, especially visual media, is very influential in student learning and learning outcomes. The teacher can develop visual learning media so that students can learn well fun and attract learning interest. Experts say that approximately 90% of one's learning outcomes are obtained through vision, 5% from hearing, and 5% from other senses. Development research aims to produce a valid leaflet-based learning media so that it is fit for use by students. This type of research was adapted from Tessmer's design, through the preparation stage (preliminary) and formative evaluation (formative evaluation) with stages only to self-evaluation, and expert testing. The expert opinion includes 3 validators according to expertise. Data was obtained from research instruments in the form of content/material validity evaluation sheets, and construct validity. Data collection techniques using assessment sheets. Analysis of data validity based on the Akbar category (2013). Based on the research results of the first meeting leaflet, the content validity value was 92.05%, and the construct validity was 98.61%. The second meeting leaflet obtained content validity value 92.65%, and construct validity 97.45%. So it was concluded that the learning media of the development leaflet was categorized as very valid.