The astrolabe helped sailors estimate their position using the stars.
← Unit 4: Transoceanic Interconnections
Topic 4.1 · c. 1450–1750
Technological Innovations from 1450 to 1750
Sailors adapted navigational tools and ship designs from several regions. These technologies made longer ocean voyages practical.
The big picture
What to know
Sailors adapted navigational tools and ship designs from several regions. These technologies made longer ocean voyages practical.
The lateen sail improved a ship's ability to sail with changing winds.
The caravel combined useful sailing features for long Atlantic voyages.
Check your understanding
01 / Multiple choice · 3 questions
Choose one answer for each question. Feedback appears below it.
Question 01
Which example fits this clue? The astrolabe helped sailors estimate their position using the stars.
Select an answer to check your thinking.
Question 02
Which example fits this clue? The lateen sail improved a ship's ability to sail with changing winds.
Select an answer to check your thinking.
Question 03
Which example fits this clue? The caravel combined useful sailing features for long Atlantic voyages.
Select an answer to check your thinking.
02 / Write with evidence
Write a short response
How did borrowed and improved technologies enable ocean travel?
- Make a claim that answers the question.
- Use two examples from the review.
- Explain how the examples support your claim.
See a model response
Sailors adapted navigational tools and ship designs from several regions. The astrolabe helped sailors estimate their position using the stars. The lateen sail improved a ship's ability to sail with changing winds.
Worksheets, notes & slides
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Resources & review
Quick study check
Before opening another resource, explain these examples from memory. Reveal each explanation to check yourself.
astrolabe
The astrolabe helped sailors estimate their position using the stars.
lateen sail
The lateen sail improved a ship's ability to sail with changing winds.
caravel
The caravel combined useful sailing features for long Atlantic voyages.
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