Determine which of the statements are claims from the passage and which are counterclaims.

Claims:
1. Cell phones prevent walkers or runners from hearing danger approaching.
2. Cell phones can even improve retention with music as a memory aid.
3. Cell phones can be useful in classes that require significant amounts of silent work: art or creative writing classes, for example.

Counter-claims:
1. Cell phones are a constant distraction in the academic classroom.
2. Cell phones create anti-social behavior preventing the development of the art of conversation.

Explanation: Claims are statements that present a position or argument supporting a specific viewpoint. In this case, the first three statements advocate for the benefits of cell phones. Counter-claims, on the other hand, present opposing viewpoints that challenge those benefits, highlighting distractions and social issues caused by cell phones.