Answer:

 

Answers may vary.

Two possibilities include the following:

·         Lucas walks two blocks south, then three blocks east; or

·         he walks one block east, two blocks south, then two blocks east

 

 

       

 

 

Teacher Notes:

Using grids and developing fundamental ideas and strategies for navigating them are important components of discrete mathematics4

 

4 National Council of Teachers of Mathematics (2000).  Principles and standards for school mathematics (pp.165–168).  Reston, VA