Arhin Ato Kwamina, Adelaide Koryoe Offoe (2015). Gender Differences and Mathematics Achievement of Senior High School Students: A Case of Ghana National College. Journal of Education and Practice,6, (33),http://iiste.org/Journals/index.php/JEP/article/view/27368/28058.ISSN: (Paper)2222-1735 (Online)2222-288X