1. 사회 4학년 1학기 복습

https://www.youtube.com/watch?v=ERHcd04NHSI&feature=youtu.be

https://www.youtube.com/watch?v=ptOGseYO4To 

https://www.youtube.com/watch?v=RyoBG8dd1Ao 

https://www.youtube.com/watch?v=-3bPbaFFDgU 

https://www.youtube.com/watch?v=VpfQwKvE1hs 

https://www.youtube.com/watch?v=-CHL_yllY24 

https://www.youtube.com/watch?v=KdZBF-SxTHM 

https://www.youtube.com/watch?v=zvy_jsEREMU 

https://www.youtube.com/watch?v=thpN5RlW-x8 

https://www.youtube.com/watch?v=ZVISBekgTbA 

2. 과학 4학년 1학기 복습

(첨부 파일)