Unit 3 Inventors and InventionsGreat inventions from great inventors changed our life.How did an inventor invent something?Stages every inventor must go throughApplying for a patentFinding a problemDoing researchTesting the solutionThinking of a creative solutionDeciding on the inventionFinding a problemDoing researchThinking of a creative solutionTesting the solutionDeciding on the inventionApplying for a patentThe problem of the snakesThe problem of the snakesRead the titlethe problemsolutiont
