In TOEFL Writing Part 3, professors typically present discussion prompts in one of three formats:
Agree or disagree
Which do you prefer: A or B?
Open-ended questions
On this page, you will focus on practicing the third type, in which you are asked to think one theme relevant to the prompt and discuss it.
Practice Question
Prompt
A professor has posted a question for discussion, and students have shared their opinions. Make a contribution to the discussion.
You will have 10 minutes to write.
Your professor is teaching a class on human geography. Write a post responding to the professor’s question.
In your response, you should do the following:
Express and support your opinion.
Make a contribution to the discussion in your own words.
An effective response will contain at least 100 words.
—
Professor
People often think about geography in terms of countries, mountains, rivers, or climate. However, geography also influences daily life in less obvious ways. The physical characteristics of a place can affect transportation, housing, food production, and even social interactions. Looking at the world today, many regions have developed in very different ways because of their geographic conditions. What geographic feature do you think has had the greatest influence on human societies throughout history? Explain your choice.
Student 1
Rivers have probably had the greatest impact on human societies. Many of the world’s earliest civilizations developed near major rivers because they provided fresh water, transportation routes, and fertile land for agriculture. Even today, large populations continue to live near important river systems.
Student 2
In my view, coastlines have influenced human development more than any other geographic feature. Coastal regions often become centers of trade, cultural exchange, and economic activity. Access to the sea has helped societies connect with distant regions and expand their influence.
Remember that, according to official TOEFL Writing guide video, you don’t necessarily have to address each student’s response. Indeed, if you can express your ideas with more than 100 words, you can simply write that down, and you will still have 5 marks out of 5.
Mountain ranges have had a major influence on human societies throughout history. They often shape where people can travel, settle, and build connections with other groups. Because mountains are difficult to cross, they can separate communities and help preserve distinct languages, customs, and ways of life. A clear example is how mountain regions often develop strong local identities. Communities living in isolated valleys may depend on nearby resources and interact less frequently with outsiders. At the same time, mountains can protect societies from invasion and create natural borders between regions. Although rivers and coastlines support trade, mountains affect both movement and cultural development in a lasting way. For this reason, mountain ranges have been one of the most powerful geographic influences on human history.
Opening of the Response
Since this is an open-ended question, the response should begin by choosing one geographic feature clearly. The model answer does this by selecting mountain ranges:
Mountain ranges have had a major influence on human societies throughout history.
This opening works because it gives a direct answer to the professor’s question. In open-ended prompts, the writer should not spend too much time listing several possible answers. Instead, it is more effective to choose one idea early and develop it with clear reasons.
For this question, mountain ranges are a strong choice because they can affect travel, settlement, cultural separation, and political borders. This gives the writer several clear directions for explanation without making the response unfocused.
General Explanation
After the opening, the response explains the basic logic behind the choice. The key idea is that mountains shape human movement:
They often shape where people can travel, settle, and build connections with other groups.
This is not just a description of a landform. It explains how geography affects human behavior. If a mountain range makes travel difficult, then people on opposite sides may interact less often. That reduced interaction can influence trade, language, customs, and political relationships.
The next sentence develops this cause-and-effect relationship further. Mountains are difficult to cross, so they can separate communities and help preserve distinct ways of life. This explanation is important because it connects physical geography to social and cultural development, which is exactly what the prompt asks about.
Specific Support
The response then makes the general idea more concrete by referring to isolated valleys. This example works because it shows the social effect of mountains in a specific setting. People living in isolated valleys may depend on nearby resources and have less contact with outsiders.
That detail supports the main argument in two ways. First, it shows how mountains can affect daily life by limiting access to outside goods, ideas, and people. Second, it explains why local identities may remain strong in mountain regions. If a community has fewer outside influences, its language, customs, and habits may remain distinct for a longer time.
The response also adds that mountains can protect societies from invasion and create natural borders. This broadens the support without changing the topic. The paragraph is still about mountains, but the effect is now shown in both cultural and political terms.
Conclusion
The ending briefly acknowledges that other geographic features also matter:
Although rivers and coastlines support trade, mountains affect both movement and cultural development in a lasting way.
This sentence is useful because it recognizes other reasonable answers without weakening the writer’s position. The response doesn’t become a comparison essay. It simply uses rivers and coastlines as a contrast to reinforce the importance of mountains.
The final sentence then returns to the main claim and closes the paragraph clearly. This is effective because it does not introduce a new example. Instead, it reminds the reader why mountain ranges are a strong answer to the open-ended question.
Hi, I completed a Master’s program at Purdue University, where I specialized in test design and assessment effectiveness. My academic focus was English-language standardized tests, including the TOEFL, IELTS, ACT, SAT, and GRE. I began writing these articles because, when I was preparing for the SAT and GRE myself, I found few resources that explained the tests in a systematic and practical way. My goal is to create materials in which solving questions naturally builds the background knowledge needed for the exams, helping learners manage both content and strategy more effectively.
