Classification is a very useful way for the author to organize the ideas according to their features and to different purposes.
举一反三
- ________ very useful, these ideas are not practical
- ________ very useful, these ideas are not practical.
- One way to define an adult is by age, but countries have very different ideas about the _______age of an adult.
- Situation means the way you organize your ideas for the speech.
- Different from brainstorming which encourages generation of ideas， (m)_____ helps students organize these ideas.