Is this your pencil case?
Grade 4 Lesson 3
Looks like: Real heads with cartoon bodies
Publisher: 천재교육, Cheonjae, 2010.7.30
Grade 5 Lesson 3 Whose MP3 player is this?
Looks like: Kids on a flying green/blue thing
Authors and publisher: YBM
No subtitles: http://www.adamthomasphotography.com/Other/Videos/17145463_TnfwpG#!i=1762493395&k=cH6VbLp&lb=1&s=A edit