This graphic organizer is a great way to help students understand and classify clues in mystery stories. As you read, stop and have the students point out the clues. Write each clue on a puzzle piece. When you're finished reading, talk about how all the "puzzle pieces" (clues) fit together to solve the mystery. Then, students can have a little fun coloring each puzzle piece according to what the clue shows: means (tools used), motive (why), opportunity (the perfect timing), unrelated (misleading "clues" that did not help solve the mystery"), or just miscellaneous clues that don't necessarily fit into any other category.
I used this as a precursor to a 7th grade persuasive writing assignment to help them organize their information before arguing a court case relating to Arthur Conan Doyle's "The Adventure of the Speckled Band", but this activity could be fun for any age!