7 units for SP intermediate 1. Saving our planet is important! It is of great interest to many of our students! Interested students learn better, retain better and make the classroom a stimulating and enriching place.Check the INDEX page of every unit.The index gives: subject matter, grammar, vocabulary, oral exercises, homework.That will help you place the units in your curriculum. Examples:The unit on the STORKS, in addition to all the cultural materials, also integrates the COMPARATIVE and th