01 / 9The School of Life≈ approximate level A21:02–1:08 .
02 / 9TED-Ed≈ approximate level C12:37–2:45
, , .
03 / 9Big Think≈ approximate level B28:38–8:42
.
04 / 9TED-Ed≈ approximate level C10:06–0:17
, , , .
05 / 9PBS NewsHour≈ approximate level C15:09–5:15
, : : " .
06 / 9Sprouts≈ approximate level B22:27–2:38
- .
07 / 9TED-Ed≈ approximate level B13:11–3:20
, , .
08 / 9TED-Ed≈ approximate level C10:42–0:50
, .
09 / 9Sprouts≈ approximate level B10:36–0:44
: .