Differentiation Draw the trend line together as a class. Have a full class discussion about the trend line instead of in groups. Allow students to watch the video on individual devices, if available, to allow for personal interaction. Modifications Extending the Learning Have students research any other forms of representations of data related to arctic sea ice extent. They might be surprised to discover how many different ways there are to represent the same data. Have students visit this interactive feature about ice melt in Greenland: http://www.nytimes.com/interactive/2015/10/27/world/greenland-is-melting-away.html?emc=edit_tnt_20151027&nlid=146126&tntemail0=y&_r=1
