anchor.diff:          | What do we cover?
   
         p(data-i18n="teachers.what_cover_1")
  -        | There are 20 levels in the Hour of Code tutorial that teach and 
  +        | There are 27 levels in the first stage of CodeCombat that teach and 
           | reinforce 6 specific computer science concepts:
   
           ol
  
positive.code:         | to run smoothly than video or written tutorials. We have optimized 
          | it to run quickly on all modern browsers and on older machines so 
          | that everyone can play. That said, here are our suggestions for getting 
          | the most out of your Hour of Code experience:
  
        ul
          li
            strong.spr(data-i18n="teachers.sys_requirements_2") Use newer versions of Chrome or Firefox.
            span(data-i18n="teachers.sys_requirements_3")
              | Although CodeCombat will work on browsers as old as IE9, the 
              | performance is not as good. Chrome is best.
          li
            strong.spr(data-i18n="teachers.sys_requirements_4") Use newer computers.
  
negative.code:             strong.spr(data-i18n="teachers.what_cover_input_1") Handling player input
              span(data-i18n="teachers.what_cover_input_2")
                | - responding to input events to create a user interface.
            li
              strong.spr(data-i18n="teachers.what_cover_array_1") Arrays
              span(data-i18n="teachers.what_cover_array_2")
                | - allows the player to create and loop through arrays. 
  
  
        h3(data-i18n="teachers.sys_requirements_title") System Requirements
  