matematica

1. LINK
1 SECUNDARIA ORDEN
https://www.youtube.com/watch?v=DSS5MdCUw7Q
https://www.youtube.com/watch?v=Nu6TLNAJIrs
https://www.youtube.com/watch?v=zg0iXKCuJVg&t=1265s
2 SECUNDARIA ORDEN
https://www.youtube.com/watch?v=GAEZ0l9F2r4
https://www.youtube.com/watch?v=hlPvXhiEXdk
https://www.youtube.com/watch?v=Wlr7CFaaIBw
3 SECUNDARIA ORDEN
https://www.youtube.com/watch?v=IL6IC4zBYLg
https://www.youtube.com/watch?v=IPW-Zou9pbo
4 SECUNDARIA ORDEN
https://www.youtube.com/watch?v=NjoPi9FtAQY
https://www.youtube.com/watch?v=xDiqS9beszw
https://www.youtube.com/watch?v=Ths90RSUzjw
4 SECUNDARIA ORDEN opción2
https://www.youtube.com/watch?v=uJdbEWMEDbk
https://www.youtube.com/watch?v=_k8egEHP-kw
https://www.youtube.com/watch?v=UNsMu-MUJB0
5 SECUNDARIA ORDEN
https://www.youtube.com/watch?v=k7NmZagiaZo
https://www.youtube.com/watch?v=-1o1K8j1JuY
https://www.youtube.com/watch?v=B4c8qMhdzgI

2. https://www.youtube.com/watch?v=XozirJWSjl0