Using number lines and popsicle stick man for integers

  
We drew a person on both sides of a popsicle stick.  We drew a number line on the page.  We now can interpret problems like -3-(-2).  The -3 means start at -3 on the number line.  The following – means to face your man towards the negative end of the number line.  The negative 2 means the man will walk backwards (or moonwalk) 2 spaces.  The final location on the number line is -1, the answer to the problem.