Description
There are 1,000 lockers.
Suppose the first student goes along the row of lockers and opens every locker.
The second student then goes along and shuts every second locker.
A pattern continues.
Imagine that this pattern continues for a thousand students. At the end, which lockers will be open and which will be closed? Explain.
Students are provided with a table to help keep track of which lockers are open or closed. There is a blank table and a table with 2 rows filled in. Choose the option that works best for your class.
Highlights
Description
There are 1,000 lockers.
Suppose the first student goes along the row of lockers and opens every locker.
The second student then goes along and shuts every second locker.
A pattern continues.
Imagine that this pattern continues for a thousand students. At the end, which lockers will be open and which will be closed? Explain.
Students are provided with a table to help keep track of which lockers are open or closed. There is a blank table and a table with 2 rows filled in. Choose the option that works best for your class.




