Data Visualizations

These pre-made, introductory data science lessons are a way for students to develop critical thinking and problem solving skills. We start with a question, find an open dataset to answer the question, and then ask students to reflect.

Haven’t used a Callysto learning module before? Go to our Get Started guide before you begin.

Twitch popularity for gamers

By callysto | March 17, 2021

How many gamers stream their videos on Twitch? Twitch is an online streaming platform that allows users to stream their activities (like gaming or chatting) with a global audience. It is advertised as the “world’s leading place” for gamers to stream their services. And that is just what we wanted to investigate: is Twitch really …

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Among Us popularity

By callysto | March 10, 2021

When and how did “Among Us” become so popular? “Whodunit” board games like Clue have long been popular with kids. The same is now proving true with gaming apps. The online multiplayer game Among Us, which was released in June 2018, is a fun remix of the idea of “finding the imposter in the crowd”. …

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Time spent on video games

By callysto | March 3, 2021

How much time are Canadians spending on video games? What age levels spend the most time playing video games? And, how much is *too much* time playing video games? To answer our question we: Gathered data from Statistics Canada. Note, this data is from a 2010 survey so it would be interesting to see how …

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Arctic sea ice levels

By callysto | February 23, 2021

How have Arctic sea ice levels changed over time? What is sea ice? Why is it important? This NASA article had great answers to both questions: “Sea ice is a frozen seawater that floats on the ocean surface. It forms in both the Arctic and the Antarctic in each hemisphere’s winter. This floating ice has …

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Land use across the ages

By callysto | February 18, 2021

How have humans impacted land usage over time?  Get ready to look at data that’s millions of years old! We wondered how we could use data science to learn about they ways humans have interacted or changed the land around us. “Anthromes” refers to the kind of changes humans have made to land. Cities, farmlands, and …

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Data and carbon dioxide

By callysto | February 10, 2021

How does Canada’s CO2 emissions compare to other G7 countries? Carbon dioxide (CO2) is a greenhouse gas. This means it’s a “gas in the Earth’s atmosphere that traps heat.” Think about greenhouse gases as tents. If you’re camping, the tent covers you and keeps in warm air.  So where does CO2 come from? Commonly, it comes …

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Data science and climate change

By callysto | February 4, 2021

How can we use data to look for evidence of climate change? When we think about climate change, temperature is a factor. Here’s a fun fact about temperature scales. When you hear people say, “degrees Fahrenheit”, did you know “Fahrenheit” was a person? Daniel Fahrenheit lived over 300 years ago and invented the mercury thermometer. Even …

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Holiday lights in Canada

By callysto | December 15, 2020

How popular are LED holiday lights in Canada? In addition to holiday music (which we talked about in last week’s visualization) the holidays are often marked by people decorating their homes with lights. We wondered how popular light emitting diode (LED) lights were in Canada, for holiday decor. Fun fact: LEDs are often known for …

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Popular holiday tunes

By callysto | December 8, 2020

Are there other holiday songs that are as popular as, ‘All I want for Christmas is you’ ?   You’ve likely heard this holiday tune before. If you haven’t, play the YouTube video above. This single is by American singer-song writer Mariah Carey. According to Wikipedia, this song is, “the bestselling Christmas single by a …

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Data science and memes

By callysto | December 2, 2020

Have you ever wondered what meme data looks like? We answered that question by looking at a dataset based on data from the “WeRateDogs” Twitter account. The dataset was created by Greg Baker, a Computing Science instructor at Simon Fraser University in British Columbia (BC). Greg’s inspiration for the dataset came from an article written …

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COVID-19 and log scales

By callysto | November 26, 2020

Have you ever wondered how you can use data to learn about the growth of COVID-19 cases? We answered that question by looking at how long it takes for reported COVID-19 cases to double in Canada. We did this by plotting them using a logarithmic or “log” scale on a line graph. We created two …

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Popular video games

By callysto | November 20, 2020

Have you ever wondered what the most popular video games are?  This week, we explored that question by creating two pie charts using Wikipedia data about: Number of players for specific games (first pie chart) Video game sales (second pie chart) Data source: Wikipedia: List of most-played games by player count  Data source: Wikipedia: List of …

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