Higher-order questions require answers that go beyond simple information and as such both the language and thinking behind them is more complex. They take learners into more abstract language functions, such as giving and justifying opinions, speculation, and hypothesising.
Also see Lower order questions.
Bibliography
“Higher-Order Questions.” n.d. Teachingenglish. Accessed December 21, 2022. https://www.teachingenglish.org.uk/article/higher-order-questions.