Can you imagine sailing off to the West, into empty looking ocean, to find what your captain believes is a good route to the Indian subcontinent? This was a pretty risky navigational feat. Luckily the ships experienced good weather on their trip to the Caribbean.
Use some of what we know now about navigation to examine this trek and do some reasoning and experimentation with the data. For younger students you might consider using only the first part of the activity.
The activity: 1492.pdf
CCSS: 5.G, 6.RP, 7.RP, 8.G.B, HSG.SRT.C.8
For members we have an editable Word doc and solutions.
from Yummy Math http://www.yummymath.com/2015/columbus-trip-and-navigation/