The basic unit of the Child-to-Child project is the community team. Each team is made up of 10-15 children between the ages of seven and 12 years. One or two adults from the community, usually parents or teachers support each team. Each team has a CISAS Educator assigned to it, who meets regularly with the team. At the end of the projects, the teams will have acquired the necessary skills to continue to work independently of CISAS. They will have achieved recognition in the community and coordination with local institutions needed to sustain the work.

The Child-to-Child methodology defines four stages in the development of community teams.

Stage 1: Formation and Strengthening
This is the beginning period of the team. The main tasks during this period are team strengthening, learning the basics of preventive health, and learning to share information and knowledge with other children and with adults. CISAS educators meet once or twice a week with the team.

Stage 2: Consolidation
Team members work actively as promoters, as well as working on concrete initiatives such as small projects. That is, the team becomes an active player in solving personal, family and community problems within their reach. As one child promoter said, this is "preaching by example". CISAS educators meet weekly with the teams during this stage.

Stage 3: Transition to Independence
This is a stage of preparing objective and subjective conditions for the teams to be able to function independently. This is a stage of sharpening the skills developed by the promoters in the two earlier stages. The work is oriented towards developing the ability of the team to act independently. CISAS educators make monthly or twice monthly visits to the team.

Stage 4: Independence
The teams are ready to work independently in the resolution of personal, family and community problems. CISAS maintains a relationship with the team for one year during this stage. Team members are invited to refresher training courses and to training activities on new topics. They participate in national meetings and receive the magazine "La Bulla".

The most important aspect of this stage is that the community teams make their own decisions and are responsible for their own activities. By this stage they have mastered the four steps of the methodology. The CISAS educator visits the team on a monthly basis to keep informed, and to share information about the team with other teams.