Constitution of the Republic of China (Taiwan) Article 160

All children of school age from six to 12 years shall receive free primary education. Those from poor families shall be supplied with books by the Government.All citizens above school age who have not received primary education shall receive supplementary education free of charge and shall also be supplied with books by the Government.
中文原文 中華民國憲法第160條
六歲至十二歲之學齡兒童,一律受基本教育,免納學費。
其貧苦者,由政府供給書籍。
已逾學齡未受基本教育之國民,一律受補習教育,免納學費,其書籍亦由政府供給。

English translation for reference only; the Chinese text prevails. Not legal advice.