Lee la información en el artículo abajo de Acceso.

You should answer the comprehension questions on the page. These are not submitted to me though. You can stop at "Preparación para clase". The video in that section might be of interest, but I found the sound quality to be a little too hard to hear.

There are also many links out to good sources of information which you may want to explore, especially if you choose one of these areas for your migration wave research.