You can see that that you need to answer four subquestions that lead to the answer on the main question. Copy these subquestions and start your research. Which information can you find?
Use reliable sources with correct information. For example: don't use Wikipedia as a source, that can be written by anyone, but Wikipedia can be a good place to find good sources!
Some questions you can ask yourself about the sources are:
What year does the source come from? (is it still up to date?) For a website: What does the layout look like? Who owns the website? Who is the creator of the source? Is this a reliable party? Does the source creator also refer to other sources? Is the creator's goal to inform? (Or: give an opinion, convince?) Avoid websites like: Wikipedia (but have a look at the sources that are stated on the bottom of the website), blogspot.com, wordpress.com, scholieren.com
Because you are working in a group it is a good idea to make a planning.
Divide the subquestions over the group and take into account the amount of work it will take. Some subquestions are shorter/easier to answer than others.
After you find good sources, start answering the subquestions.
This is an indication of what I expect from you in terms of length and content:
Subquestion 1: What does sustainability mean (to you)?
First explain the concept of sustainability, what does it mean? Perhaps there are several definitions? (use multiple sources) Then you answer what sustainability means to you (and your group) and what kind of sustainable things you already do. (Everyone in the group writes a part about themselves) Use 500 to 700 words.
Subquestion 2: What is the municipality of Rotterdam's vision on sustainability?
Find out what the vision/goals/ambitions of Rotterdam are when it comes to sustainability. Do a thorough search in the municipal documents and eventually formulate a clear answer. Use between 500 and 700 words (Tip: you can start with this source: https://duurzaam010.nl/wat-wij-doen/)
Subquestion 3: What did you see and learn during the for your sustainable city walk?
On the day of the city walk you should actively participate and do your own presentation on location. You will take photos and assignments for your report during the day. In this sub-question, you will describe what you have done, seen and learned during this day. You will also tell about the presentation you gave and how it went. Use between 400 - 500 words.
Subquestion 4: Which projects have you chosen and why are the projects sustainable?
This is a very important question in the assessment. You make this subquestion per project. You first describe for project 1 what the project entails, where it is located, who made/designed it and how this project contributes to a sustainable world. Really go into depth, so don't just mention, it saves water, but also explain why it is important that we save water. Use geographical terms in this! Use at least 400 words per project. So a total of 2000 words.
I also expect pictures in the report with a short description underneath it. There should be no spelling errors in the report, I expect correct use of English.
You will have at least two lessons to answer the subquestions. This may mean that you will also have to do some homework at home.
You must submit the first version of the answers to the four subquestions to your teacher by 4 November at the latest. You will then receive feedback from the teacher, so that you can further improve your report.
If you do not submit anything, or only half a report, you will also receive no/less feedback and you will ultimately see this reflected in your final grade, so make use of this opportunity!