填空题 Questions 23-26
Complete the summary below.
Choose ONE WORD ONLY from the passage for each answer.
Write your answers in boxes 23-26 on your answer sheet.
Children's Cognitive Development

Psychologists are interested in whether children's cognitive development is helped when they discuss problems with their {{U}} {{U}} 10 {{/U}} {{/U}}
One experiment found that children who were solving a manual problem in pairs were acting in {{U}} {{U}} 11 {{/U}} {{/U}} instead of cooperating with each other. The same researchers found that when the children engaged with each other, their problem-solving ability seemed to increase. However, pairs of children who often had {{U}} {{U}} 12 {{/U}} {{/U}}about a problem seemed to benefit the most.
Other studies found that pairs of children who were equally matched for ability seemed to benefit the most. The writer concludes that tasks which are completely {{U}} {{U}} 13 {{/U}} {{/U}}for both
children may create the best opportunity for learning.