From heavy metal to poker to the history of Samurai, make 2024 your year with these online course materials and educational resources.Image: Jacek Kita via iStockAre you looking to learn a new language, explore musical genres, or improve your poker game in 2024? We’ve compiled 13 free online courses from MIT OpenCourseWare to kick start the new year on a positive note — from Italian, The Beatles, and heavy metal to poker theory, the history of Samurai, and different ways to understand climate ch...