I could not locate detailed information about the Sao Tome and Principe 1st Grade (Ensino básico 1ª Classe) Curriculum - Social Studies. However, the following resources may contain relevant information:

• Sugestões Pedagógicas 1ª classe: This appears to be a teacher's guide for 1st grade, and may contain information about the social studies curriculum.
• 1ª a 4ª classes: This category in the Ministry of Education's digital repository contains resources for 1st to 4th grade, which may include social studies materials.
• Repositório Digital do Ministério da Educação de São Tomé e Príncipe: This is the main digital repository for the Ministry of Education, and may contain other relevant documents.