Travail de Sonia Marichal:https://algorythmes.blogspot.com/2021/05/zoo-de-la-symetrie-cm2-6e-mathsart.html?fbclid=IwZXh0bgNhZW0CMTAAAR3-YNCiy40KyM36K5mBpZORGN5ODbbaCxWfdT33C19f7oOVCGKy6HmtJHE_aem_TwzWA5CGgquLJ4BEkdWFRA
Sur fond blanc: