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Title: Too much background knowledge required for most of the cards....
Review: I'm a speech language pathologist and thought these cards would be great for inferencing skills and problem solving. The stories are more a test of background knowledge with "solutions" that require the knowledge of when plastic was invented, what a philatelic society is, and how/why silver tarnishes. This is way too hard for my students who have language difficulty. For mainstreamed kids, it might be a fun challenge or interesting way to learn random "trivia-style" facts.
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