If I had a nickel for every time someone asked me for this outline...(lots of nickels) It is a simple outline for student work but it proves useful and provides helpful language.
There is some structure here for the activity of letting students explore surreal art and share their findings with each other & there is also modeled language and sentences to communicate symbolism.
I suggest allowing students to search for examples of surreal art on a computer or mobile device browser for ~15 minutes, then drawing their own surreal combinations in drawings. If you intend for this activity to last longer than an hour, then plan on having students share their creation with each other and then tell the class or a small group (if you have jigsaw skills) about a drawing they saw today.
You will be better prepared to guide students through this activity if you make your own sketches first and show them (especially those who are initially slow to get the concept) A good example to offer students is a stick-figure of a student drowning in a sea homework, or a teacher in a sea of essays.
I have used this activity for students after they are introduced to the biography and current popularity of Frida Kahlo.
See also http://www.pbs.org/weta/fridakahlo/
The topic is inherently interesting to teenagers, but you MUST push for Spanish language to be used as much as possible. How? Objective-wise, you can focus on the sentences that students create at the conclusion of this activity.
*You may also want to copy and display around the room samples of Frida Kahlo's painting and sketches.
*I have used this activity with 10th graders in a 6-12 program, but it can accommodate a near total range of language abilities.
I hope you enjoy this!