I designed this activity to use while teaching Realidades 1 8B, and it is ideal to use on an EARTH DAY celebration in your school.
First, each student is given 5 global problems, and s/he has to rank them in order of importance. Then, s/he asks 5 other students for their opinion, and records the answers on the page.
In the second section, students match the global problem with a plausible solution.
After a very short guided discussion follows and as a class we compare answers. I have also extended the matching section by having students give their answers in the target language by using expressions of need or obligation. For example: Un gran problema es.... Hay que/Podemos/Tenemos que/Es necesario +infinitive (to avoid the subjunctive).
If your school celebrates Earth Day on a whole, this is a perfect little activity.
Thanks, and make sure to check out my store filled with Realidades 1 and 2 materials, as well as Avancemos 1 materials with more on the way.
Have a great year,
The Spanish Señora