Self-study|IT|Pre-Int|Lesson 14: Data structures and algorithms


Today, we’re going to talk about an appealing profession, but first, let’s read the facts and guess what this profession is.

Read some facts and try to guess what job is described. Then give your own explanation of this job

1. They make discoveries while swimming in data.

2. They are creative in displaying information visually and making the patterns they find clear and compelling.

3. They combine the qualities of a data hacker, an analyst, a communicator, and a trusted adviser.

4. They advise executives and product managers on the implications of the data for products, processes, and decisions.

Reorder the words and read the job description

Today, we’re going to talk about data analytics and skills that are essential for this job.


Label the picture with the given words and phrases. Then click on the hotspots «+» and check yourself

quantify Relationship personal characteristics certificates
Soft skills are quite subjective Specific knowledge Hard skills

Tick the appropriate skills according to the category

Add and write three more skills for each category


Choose one of the topics and answer the questions. Record your answer

  • What kind of skill is an advanced level of English?
  • How can you measure it?
  • How can you prove it?
  • Is this skill important for your career perspectives?

What are 3 hard and 3 soft skills that are essential for your job?

What are your 3 top skills and 3 skills that you lack?


Look at the pictures and do the task. Then listen to an excerpt of the lecture and choose the correct ending for each sentence

Read the applications of these data structures and try to remember them


Answer the following question in the text area bellow.

🔹What other professional knowledge does a data analyst need?



Look at the picture and answer the questions.

🔹What do you know about these tools?

🔹What do they have in common?

🔹Have you worked with any of them? If so, describe your experience.

Use the voice recorder.

Listen to three people discussing different data analysis tools and mark the sentences as True or False

Ann Bob Christopher

Ann: Bob, what are your top data analysis tools?
Bob: Tableau Public.
Christopher: Tableau Public? Really? Why?
Bob: It provides many solutions with different features for each solution. The system is easy to navigate and can be used by an organization of any size. Besides, Tableau Public is free, and you have to pay only $70 per user per month if you want to use Tableau Creator. Christopher, why are you so surprised by my choice?
Christopher: Why? Because it’s open to the world. Once a visualization is published on Tableau Public, it is open to everyone.
Bob: Yes, but the data can’t be saved locally. And what about your favorite tool?
Christopher: Of course, it is Rapidminer. It is easy to navigate – even beginners can use this tool. No coding skills are required. It provides a powerful GUI.
Ann: Yes, but if I’m not mistaken, the product is rather costly, it provides a free plan only for 10,000 data rows.
Christopher: Yes, Ann, but good products cost money, don’t they?
Ann: I can’t agree with you. For example, OpenRefine is a free and open-source data analysis software, and it’s really good. It allows you to select multiple rows using filters and apply command. It supports many file formats for import and export. Small, medium and big companies can use this application.
Bob: Yeah, and it has a user-friendly interface. Getting back to Rapidminer, I would add that its use case is limited to the set of processors/modules it contains.
Christopher: Okay, okay … I don’t want to argue. Tastes differ, as they say.


Read the examples and choose the correct options to complete the rule about the passive voice

✔️ This tool can be used by an organization of any size.

✔️ Small, medium and big companies can use this application.

Click on the button to read the rule in more detail.

Passive («be» and Past Participle)


Many gadgets have already been invented. What things will be created in the next 20 years?



Rice is grown in China.

A company party was organised yesterday, but I wasn’t invited. I am never invited to parties.

In the next 20 years, the cure for cancer will be developed by scientists.



Object + be + Past Participle



🔹We use passive voice when the object is more important than who does the action.

Several people were injured in the accident.

I was bitten by a dog when I was a child.

🔹We use passive voice when we don’t know who does the action.

My keys were stolen yesterday.

This church was built in the 19th century.

🔹We use passive voice when we can understand who does the action from the context.

The criminals will be arrested soon. (by the police)

How often is your room cleaned? (by you)

🔹We use by to add the agent to the passive voice.

The telephone was invented by Alexander Bell.

The renovations have been done by my friend.

Common mistakes

The door painted green. ✔️ The door was painted green.
Two people were took to hospital. ✔️ Two people were taken to hospital.

Complete the text with the given verbs in the correct form


We’ve covered some of the hard skills necessary for data analysts, what else is important for this job?

What soft skills will you name as the essential ones for this profession?

Listen to data analysts and tick the soft skills they mention

Speaker 1 Speaker 2 Speaker 3 Speaker 4

Speaker 1: To work in analytics, you need to have skills from different areas. I think that besides our professional skills, it’s vital to be creative. You have to look at the problem from different perspectives, as there are no templates in working with data. I also believe that learning ability is crucial for our job – you need to grasp any opportunity to find something new and never stop learning.
Speaker 2: If we don’t speak about professional skills, then I’ll definitely highlight teamwork. We collaborate with people in a variety of positions to get the job done. We work together with web developers to ensure that our company’s website is designed to efficiently capture the data we need. On a big-picture scale, we communicate with company leaders to determine how the latest data insights can guide the company in moving forward toward its objectives.
Speaker 3: To succeed in this job, you need to be really flexible. We have to experience things first-hand, and there are no guarantees that the model we come up with will work the first time. So we need to draw conclusions and take actions again focusing on the aim and not the previous failures. Well, I think that being flexible and ready to go from plan A to plan B is important.
Speaker 4: I’d be really surprised if my colleagues hadn’t mentioned critical thinking. I believe it to be the most important soft skill. This skill helps us not to take things at face value, but dig deeper, question options, easy and expected answers, and biases.

Make a summary of the data analysts’ speeches using the given phrases

to take things at face value / to draw conclusions / to look at the problem from different perspectives / to grasp any opportunity / to experience things firsthand / to take actions


Choose the appropriate words to complete the text

Tick the skills according to the appropriate category. Explain your opinion in the text area below


Read the task and prepare your speech

You are attending the forum for teenagers «What job to choose». Give a speech about the job of a data analyst. Cover the following points:

🔹the description of this job;

🔹hard and soft skills needed for this job;

🔹data structures and their application;

🔹the data analysis tools;

🔹what skills to develop first and why;

🔹the advantages and disadvantages of this job.

Use the voice recorder.


Complete the definitions to revise the phrases from the lesson

Information storage tools have a long history and are constantly changing depending on technology advances.

Complete the text about data storage devices with the given verbs in the correct grammatical form


Listen to three people answering the question «What do you do in big data?» and match the speakers with their jobs

Read the task and prepare your 3-minute speech on the topic «Analytics in my company»

Interview your colleagues from the analytics department (even if you’re a part of it) and then answer the following questions:

🔹Who is responsible for analytics in your company?

🔹What are the duties of this department?

🔹What skills are essential for this job?

🔹What are the challenges of this department?

Use the voice recorder.

УрокУрок HomeworkHomework КурсКурс
  • A profession in demand
  • Different skills
  • Hard skills for data analysts
  • The data analysis tools
  • It can be used for many purposes
  • Soft skills for data analytics
  • Essential skills
  • Time to speak
  • Homework 1
  • Homework 2