Accidental Inventions

Rob - author of the lesson plan   Rob I November 17, 2021
General English, Speaking Lessons
C1 Advanced
Mixed Grammar
Speaking, Vocabulary, Listening
Lesson ID
Lesson Time
45 minutes
ESL lesson plan for an online class titled “Accidental Inventions”

Lesson Overview

What a happy accident! In this lesson, students will discuss interesting facts about some of the greatest inventions. This lesson features a video that discusses some of the greatest inventions we use every day that were created by accident. Students will learn and practice narrative tenses and vocabulary relating to this topic. The lesson includes plenty of engaging discussion activities and worksheets that have been developed for adult and teenage learners.

Lesson Objectives

  • To discuss interesting facts about some of the greatest inventions that were created by accident

  • To learn and review narrative tenses

  • To develop speaking and listening skills

  • To learn and use new vocabulary relating to the topic


Have you ever wondered how potato chips or Coca-Cola were created? It might not be how you imagined it. Watch this video and learn about how some of the greatest inventions we know and use every day were created by accident. You may be surprised to see what’s on the list!

Video Transcript

Vocabulary and Pronunciation

commodity [noun]: anything that you can buy or sell
sandpaper [noun]: strong paper with a layer of sand or a similar rough substance that is stuck to one side, used for smoothing the surface by rubbing against it
hazardous [adjective]: dangerous
vanish [verb]: disappear, especially quite suddenly
patent [noun]: a legal right a person or company receives to make or sell a particular product or idea, which cannot be copied by others
slather [verb]: to spread something thickly over something else
ingredient [noun]: one of the parts in a mixture
recipe [noun]: instructions how to prepare and cook a particular food, including a list of needed ingredients
bizarre [adjective]: strange and unusual
booth [noun]: a small structure just big enough for one person to go into, e.g., phone booth
cone [noun]: a crisp usually cone-shaped wafer for holding ice cream
come up with something [phrasal verb]: to think of or suggest an idea or plan; to invent
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