Outdated Blocks in "Unit 3 Self-Check"

The self-check for BJC's Unit 3 includes outdated blocks. For example:

  • It shows "combine with _ items of _" instead of "combine _ using _"
  • It shows "keep items such that _ from _" instead of "keep items _ from _"

Thanks for the report. This'll be fixed in the next update, but I'm sure there are many more pages that have obsolete pictures. :~(