In naval history, "Tin Cans" was the affectionate (and sometimes terrifying) nickname for during WWII, particularly the Fletcher-class. These ships had thin steel hulls and were known for their speed and vulnerability. An essay here would focus on the bravery of sailors who went into battle with very little armor.
: How learning moved beyond simple "pass/fail" data in a browser to tracking real-world activities, mobile apps, and offline performance. Tin Can Free Download
In the world of educational technology, the (now officially known as xAPI) revolutionized how we track learning experiences. An essay on this topic would explore: In naval history, "Tin Cans" was the affectionate