anchor.diff:          | 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:
  +        | the most out of the CodeCombat 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 
  +            | Although CodeCombat will work on browsers as old as Internet Explorer 9, the 
               | performance is not as good. Chrome is best.
           li
             strong.spr(data-i18n="teachers.sys_requirements_4") Use newer computers.
  
positive.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.
  
  
        h3(data-i18n="teachers.sys_requirements_title") System Requirements
  
negative.code:         | What do we cover?
  
        p(data-i18n="teachers.what_cover_1")
          | There are 27 levels in the first stage of CodeCombat that teach and 
          | reinforce 6 specific computer science concepts:
  
          ol
  