sladurcheta

http://www.znam.bg/e-lessons/s1/runtime/rtleo/scorm-flo.html?sco=..%2F..%2Fcontent%2Fuc_s3_l131.flo&width=788&height=553&recording=true-
Енергия

http://www.znam.bg/e-lessons/s1/runtime/rtleo/scorm-flo.html?sco=..%2F..%2Fcontent%2Fuc_s3_l132.flo&width=788&height=553&recording=true
Енергийни източници

http://resursi.e-edu.bg/zmon/action/goToProgram?id=Prog4.9

http://www.znam.bg/e-lessons/math2/runtime/rtleo/scorm-flo.html?sco=..%2F..%2Fcontent%2Fuc_m4_l042.flo&width=788&height=553&recording=true
Окръжност