Đây là sơ đồ tư duy cho Unit 3 trong sách giáo trình tiếng Anh lớp 9:

Unit 3: A trip to the countryside

I. Vocabulary:
- Countryside
- Landscape
- Field
- Farm
- Village
- River
- Mountain
- Forest
- Lake
- Hill

II. Grammar:
- Present simple tense
- Present continuous tense
- Past simple tense
- Past continuous tense
- Future simple tense
- Future continuous tense

III. Listening:
- Listening for specific information
- Listening for main ideas
- Listening for details

IV. Speaking:
- Describing landscapes and places
- Talking about past experiences
- Making suggestions and giving advice
- Expressing preferences

V. Reading:
- Reading for specific information
- Reading for main ideas
- Reading for details
- Understanding the main idea of a text

VI. Writing:
- Writing a postcard
- Writing a letter of invitation
- Writing a description of a place
- Writing a narrative

VII. Culture:
- Traditional countryside activities
- Traditional festivals and celebrations in the countryside

VIII. Project:
- Creating a travel brochure for a countryside destination

IX. Review and Assessment:
- Vocabulary review
- Grammar review
- Listening comprehension test
- Speaking test
- Reading comprehension test
- Writing test

X. Extra activities:
- Watching a documentary about the countryside
- Going on a field trip to a countryside location
- Conducting interviews with people living in the countryside

Note: This mind map is just a general overview of the topics and skills covered in Unit 3. It is important to refer to your textbook and teacher's instructions for more specific information and guidance.