Thursday, December 22, 2011

The last presentations for Unit 3

At Mari Luz´s request, here you have the PowerPoint presentations we´ve been using to end Unit 3. They can be useful for you to complete some exercises or schemes. 

P.S: I´ll include a holiday challenge in the following days. You will have until the 8th of  January to solve it. I hope that someone more tan Javi participates this time. 

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