RAZONAMIENTO MATEMÁTICO

1. https://www.youtube.com/watch?v=3RVSqwguWNs&feature=related

2. https://www.youtube.com/watch?v=E0d7gBcZPP4&feature=relmfu

3. https://www.youtube.com/watch?v=C5LkQbv-XPE&feature=related

CAPAS DE LA TIERRA

1. http://www.youtube.com/watch?v=cjEsgBhliuI

LA ATMOSFERA

1. http://www.youtube.com/watch?v=qU2Mf47BAN0

2. http://www.youtube.com/watch?v=X5nQH73cdPo&feature=fvwrel

TEORIA DEL BIG BANG

http://www.youtube.com/watch?v=3Tu-F4UzIfc&feature=related

TEXTOS CLOZE

http://lapiceromagico.blogspot.com/2011/02/estrategia-de-comprension-lectora-cloze.html

TEXTOS CLOZE

http://lapiceromagico.blogspot.com/2011/02/estrategia-de-comprension-lectora-cloze.html