Check if an object belongs to both sets (the intersection in the middle) or just one. How to find your exact answer:
Page 32 in Matveeva’s workbook usually covers or "Encoding."
Adjust the pre-printed tree structure on pages 14–15 or 16–17 of the project notebook. Action: You need to cross out pairs of "leaves" (bottom-level spots) on the last level.
Look at the cover of your book (Matveeva, Goryachev, Bosova, or Semenov/Rudchenko).
Example: A teacher (Source) telling a story to a student (Receiver).
May ask you to identify the "Source" and "Receiver" of information in a specific scenario.
