First, you need to tell your LA what were the most important moments, battle, etc. and who were the most important protagonists.
Then you work with the Art, Music and History teachers to prepare the following main activities.
A group-produced Power Point on the most famous kings/queens, battles and monuments. Divide pupils into small groups (e.g. 4). Each group prepares a couple of slides in English and, on the day of presentation, presents them in English.
A class show for other classes and/or parents. You could try a kind of pageant or dramatization of the most representative Asturian and Spanish kings up to Ferdinand and Isabella, (e.g. a) I’m Pelayo. I fought in the Battle of Covadonga. We won. b) I’m Favila. I was killed by a bear, I’m Alfonso the First, I’m famous because, etc. etc.) including a dramatisation of the battle of Covadonga.
One or two songs for the show – pupils divided into singers and band.
A classroom/entrance hall frieze, drawn by pupils, showing and explaining about the most representative people, moments and monuments of this period.