✏️ WritingGrade 2Lesson 38
← Back🔒 PDF with full access

Write About an Invention Idea

Lesson preview: the Mini Lesson and Vocabulary are open to everyone. Guided practice, exercises, the parent checklist and the printable PDF worksheet come with full access (free 7-day trial or membership).

Learning Objectives

  • 1Write about an original invention idea using an invention name, description, and purpose statement
  • 2Describe how the invention looks and works using vivid size, color
  • 3Shape, and material details
  • 4Write a clear purpose statement that names the problem the invention solves
📘

Mini Lesson

Every invention in the world started as an idea someone had to solve a problem. The wheel, the telephone, the refrigerator — all began with someone thinking: "What if there was a device that could…?" Today you get to be the inventor!

The Three-Part Invention Write-Up

  • Invention name — give it a creative, memorable name: The Packing Helper 3000 / The Pet Feeder-O-Matic.
  • Description — explain how it looks and works. Use vivid, specific details: "It is a small silver robot with four legs that walks the dog for you."
  • Purpose statement — explain what problem it solves: "My invention solves the problem of forgetting your lunch box."

Great Inventions Start With a Problem

  • Think of an everyday problem: forgetting chores, rainy days with no umbrella, muddy shoes indoors, losing your keys.
  • Ask: "What device, machine, or gadget could solve this?"
  • Your invention can be silly, futuristic, or completely realistic — anything goes!

Writing About Your Invention

  • Describe its size, color, shape, and materials.
  • Explain step by step how it works.
  • Say who would use it and how it would make their life better.
  • Sketch a labeled diagram with arrows showing the parts.
Three-part invention write-up structureThree boxes — invention name, description, purpose statement — with example text for a Packing Helper 3000.Invention Write-Up1. Invention NameThe Packing Helper 30002. Description"A small silver robot with four legsthat packs your lunch bag."3. Purpose Statement"Solves the problem of forgettingyour lunch box or water bottle."
Three-part invention write-up — name (Packing Helper 3000), description (silver robot packs bag), and purpose statement (solves forgetting things).
Problem to invention thinking processThree columns showing the thinking process from everyday problem to invention idea to write-up.Problem to InventionProblemForgettingyour lunchevery day→IdeaA robotthat packsyour bag→Write-upName it.Describe.Purpose!
Problem to Idea to Write-up thinking process — everyday problem leads to an invention idea, which becomes a written and sketched write-up.
💡

Ask yourself: "Is the invention name creative and memorable? Does my description tell the reader exactly how it works? Does my purpose statement clearly name the problem it solves?"

Vocabulary
Invention
A brand new device, machine, or gadget someone creates to solve a problem or make life easiere.g. The refrigerator was invented to keep food cold.
Invention name
A creative, memorable title given to an invention that hints at what it doese.g. The Packing Helper 3000.
Description
A detailed explanation of how the invention looks and works — size, color, shape, materialse.g. A small silver robot with four legs that packs your lunch bag.
Purpose statement
A sentence that names the specific problem the invention solvese.g. My invention solves the problem of forgetting your lunch box.
Labeled diagram
A sketch of the invention with arrows and words naming each important parte.g. An arrow points to a silver leg labeled "walking motor."
Free · 7 days · No credit card

Unlock the full HSEA system for 7 days.

Add your first kid profile and your 7 days start: every lesson in every grade, saved progress for each child. Nothing to set up, no card required, nothing to cancel.

  • ✓ All 1,680 lessons, Grades 1–6, every subject
  • ✓ Profiles + saved progress for every kid
  • ✓ Printable lessons with answer key
Start your 7-day free trial →
Already convinced? See full membership plans →
← Lesson 37: Illustrate a Personal StoryLesson 39: Family Storybook Project →