Do Now: Work with partner. Sit back to back.One person will draw a dot on their Do Now sheet, That person will use words to describe the.position of th e dot on their paper. The other person will draw the dot i n the same position on their own Do Now sheet. Rules No peeking You may not use anything other than words to describe the location of the dot. Do not look at the original dot until time is up even if you have drawn your own dot. You have 3 minutes.

Discussion What were some problems you had while doing this activity? What could have made this easier to acco mplish? If we want to locate a place on earth, what information do we need to know?

Let ’ s Look at This Question: How is latitude measured?

E F G H

E F G H

What is the latitude of each dot?

Let ’ s Look at This Question: How is longitude measured?

E F G H

E F G H

What is the longitude of each dot?

Let ’ s do some plotting.

E F G H On the coordinate system, plot the coordinates given in your notes:

E F G H State the coordinates for each of the letters in the figure above:

BASED ON THE ____________ OF _______________ Demo

Which diagram represents the approximate altitude of Polaris as seen by an observer located in Syracuse, New York?

BASED ON EARTH ’ S

EACH HOUR, EARTH ROTATES (360°/24hrs)

Example: Two students record a difference in local time of two hours. How many degrees of longitude apart are they?