This famous river crossing problem is known as the “bridge and torch” puzzle. Four people are crossing a bridge at night, so they all need a torch—but they just have one that only lasts 15 minutes. Alice can cross in one minute, Ben in two minutes, Cindy in five minutes and Don in eight minutes. No more than two people can cross at a time; and when two cross, they have to go at the slower person’s pace.
How do they get across in 15 minutes? Explain Your Answer
This famous river crossing problem is known as the “bridge and torch” puzzle. Four people are crossing a bridge at night, so they all need a torch—but they just have one that only lasts 15 minutes. Alice can cross in one minute, Ben in two minutes, Cindy in five minutes and Don in eight minutes. No more than two people can cross at a time; and when two cross, they have to go at the slower person’s pace.
Answer: Alice and Ben cross first in two minutes, and Alice crosses back alone with the torch in one minute. Then the two slowest people, Cindy and Don, cross in eight minutes. Ben returns in two minutes, and Alice and Ben return in two minutes. They just made it in 15 minutes exactly.
Agenda
Logic Puzzle (10 mins)
Where in the World (10 mins)
Intro to Immigration (10 Mins)
Intro to Harkness (25 mins)
It is the year 2030 and a major nuclear accident has taken place in America. The rest of the world has agreed to help U.S. Citizens by allowing them to emmigrate to any country in the world that they would want to move to.
Which country would you choose?
Upload a photo of the place that you would move to here.
It is the year 2030 and a major nuclear accident has taken place in America. The rest of the world has agreed to help U.S. Citizens by allowing them to emmigrate to any country in the world that they would want to move to.
Why would you choose that country? Describe some of the interesting aspects of the country.
It is the year 2030 and a major nuclear accident has taken place in America. The rest of the world has agreed to help U.S. Citizens by allowing them to emmigrate to any country in the world that they would want to move to.
Outside of a language barrier, What do you think would be your biggest challenge in moving to that country?
1) Based on what you know or what you think, what is the main reason that America allows immigrants to come the U.S. and become citizens?
2) How does the U.S. benefit by allowing immigrants from other countries to move here? (what value do immigrants bring to the country?)
Harkness Question #1:
Do you think it is important to have a class on Social Justice in High School?
Why or Why Not?
Explain your reasoning.
Why do you think TNA added a Social Justice Class to the schedule?
Write any lingering questions here.
Record your notes from the discussion here.
Write a final summary of the disucssion and the key take away points here?