互动封闭仿真课堂
1、智能交互 2、电子板书式视频教学 3、在线互动问答 4、封闭课堂启发式教学方式
随堂测试、知识梳理、易错点揭示、总结启迪智能错题本
听课中的错题能自动加入错题本,课后可方便复习及导出错题本升级服务
在线答疑、课后同类题练习、讲义下载、短信提醒Classical music is serious Western European music from the Middle Ages(1500) to the present and it was often written for a large orchestra, or for a small group of players. Many instruments can be used. A lot of music was also written to be sung as opera. Classical music is very popular and schools often teach this type of music.
Jazz developed in the Southern States of North America at the beginning of last century. The black people of these states, who were originally slaves from Africa, had their own rhythms. Jazz brought classical music and African rhythms together.