Cover of the textbook Outcomes Advanced - Student's Book

The key answer of exercise 4

The key to exercise solutions in chapter Video 4 - Baby math for the textbook Outcomes Advanced - Student's Book with authors Carol Nuttall and Amanda French from National Geographic Learning

Question

Watch the second part of the video (1.45-4.15) and answer the questions in Exercise 3.

Answer

  1. By measuring how long babies look at certain things that show arithmetical situations.
  2. Hard to know what babies are thinking; they can’t verbalise things yet.
  3. Babies notice when numbers don’t add up; babies as young as four months seem to know how to add up or subtract.