Rule of marteloio

High school (ages 12+)
Mathematics & Numbers

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Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/rule-of-marteloio

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the nature of the rule?A complex system of maritime navigation techniques and calculations
2. What is the primary methods?Celestial observation (latitude) and dead reckoning (longitude estimation)
3. How did sailors use the Rule of marteloio to find their position?They measured the sun's height at noon or the North Star at night, then used speed and direction to guess where they were.
4. Why was the Rule of marteloio important for explorers?It helped them travel long distances, trade with faraway lands, and learn about new places even when no land was seen.

Dead Reckoning: A method of navigation that estimates a ship's current position based on its last known position and estimated speed and course.
Celestial Navigation: The practice of finding one's position on Earth by observing the altitudes of celestial bodies.
Latitude: Angular distance, north or south of the equator, measured in degrees.
Longitude: Angular distance, east or west of the prime meridian, measured in degrees.