Great Activity to hammer home main idea and supporting details! Students today struggle with this concept so it is crucial to provide a fun and effective way for them to practice it. There are 4 "recycle bins" with main ideas on them and the kiddos cut out the cans which contain supporting details. They then paste the cans on the appropriate bin. There is one bin labeled "irrelevant details" and there are 5 cans with irrelevant details. An answer key is provided. There is a Microsoft Word and PDF copy for every file. Enjoy!