I use Thinkmarks to teach comprehension strategies. Each week when we go to the library I do a mini lesson about the strategy and model with the Thinkmark. Picture books are a great resource to use in your mini lesson. I used Monkey with a Tool Belt by Chris Monroe to practice making connections. My students then use their independent reading books to practice the strategy of the week. They use the Thinkmark as a bookmark and we conference the following week when we head back to the library. At the conference I record the book they are currently reading, the page #, and I ask them questions about their Thinkmark.