What Counts as a Friend: teacher key

Friendship, grade 11 edition, written for 11th grade. Researchers have counted hours, scanned brains and watched baboons and apes. Here is what each study found, and what naming a friend leaves out.

Read the book. Print this page for the key.

Questions and answers

1. When is a friendship counted as reciprocated?
   • When two children each name the other as a friend (answer)
   • When one child names three friends
   • When a teacher picks the pair
2. What did the brain-scan researchers call the most surprising part of the study?
   • The cost of the scanner
   • The large scale of similar responses across friends' brains (answer)
   • The length of the movies
3. What limit does naming friends have as a method?
   • Children cannot name anyone
   • Names are always wrong
   • It does not tell researchers how good the interaction between friends is (answer)
4. How many hours of observation was the chimpanzee study based on?
   • 78,000 (answer)
   • 355
   • 1,500
5. What does reciprocated mean in the last page?
   • Forgotten
   • Returned by both (answer)
   • Counted twice

Words

• reciprocated: returned by both
• popularity: being well liked
• naturalistic: like real life
• acquaintance: someone you know
• bonobos: ape species