Lesson 5: Web crawlers

Pupils learn how search engines work, specifically; the role of a web index, what can affect pagerank and the role of web crawlers

Learning Objectives

  • Understanding how search engines work

  • Understanding the role of a web index

  • Explaining what web crawlers are

  • Being able to discuss pagerank

Lesson Plan

How search engines work
See the plan

Teacher Video: Web crawlers

Presentation: Web crawlers


Web crawlers resource
Created by:
Sway Grantham,  
Computing specialist
Sway Grantham (@SwayGrantham) is a Primary School Teacher, a CAS Master Teacher and Specialist Leader in Education for Primary ICT. She also has a BCS Certificate in Computer Science Teaching (Primary). She has written several curricula and conducted research into the…
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