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Digital Media Literacy · 3rd Year

Active learning ideas

Algorithms and Echo Chambers

Algorithms and Echo Chambers explores the invisible forces that shape our online experiences. Students investigate how social media platforms and search engines use data to personalize content, often leading to 'filter bubbles' where users only encounter viewpoints that align with their own. This topic is vital for understanding how public opinion is formed in the digital age.

NCCA Curriculum SpecificationsNCCA DML LO 2.4: Explain how algorithms influence the information they seeNCCA DML LO 2.5: Discuss the impact of filter bubbles on society
20–40 minPairs → Whole Class3 activities

Activity 01

Simulation Game40 min · Whole Class

Simulation Game: The Human Algorithm

Assign students roles as 'users' with specific interests and 'algorithms' who must choose which 'content cards' to show them based on past likes. This demonstrates how quickly a user's feed becomes narrow and repetitive.

How do algorithms decide what content to show us?
ApplyAnalyzeEvaluateCreateSocial AwarenessDecision-Making
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Activity 02

Inquiry Circle30 min · Pairs

Inquiry Circle: Search Engine Showdown

Pairs use different devices or browsers to search for the same controversial or subjective term. They compare the top results and discuss why the order or content might differ based on location or search history.

What is an echo chamber and why is it dangerous?
AnalyzeEvaluateCreateSelf-ManagementSelf-Awareness
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Activity 03

Think-Pair-Share20 min · Pairs

Think-Pair-Share: Bursting the Bubble

Students identify one topic they feel strongly about and brainstorm three sources that might offer a different perspective. They share these with a partner to discuss how following diverse voices changes their understanding of the issue.

How can we expose ourselves to diverse viewpoints online?
UnderstandApplyAnalyzeSelf-AwarenessRelationship Skills
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A few notes on teaching this unit


Watch Out for These Misconceptions

  • Algorithms are neutral and just show me what I want to see.

    Algorithms are designed to maximize engagement for profit, which often means showing inflammatory or extreme content. A role play simulating the 'engagement' goal of a platform helps students see the bias built into the code.

  • I am not in an echo chamber because I see 'both sides' on my feed.

    Often, we see the 'other side' only through the lens of people mocking it. A collaborative investigation into 'context collapse' helps students see how algorithms can distort their perception of opposing views.


Methods used in this brief