Before and After an Invention

Before and After an Invention Worksheet: How an invention changed life (Grade 4 Science, TEKS 4.4A)

Students read how Mary Anderson saw a streetcar driver lean out in the snow and designed the windshield wiper, sort four sentences as before or after the invention, then circle what changed. The page teaches the idea first, so no prior lesson is needed, and every answer is printed on the page. One sheet is one page, with two short parts and nothing to write from scratch.

What's Inside

• A short teach box on comparing before and after
• A short true story with a picture of a streetcar window and wiper
• Part A: write B (before) or A (after) for four sentences, first one done
• Part B: three circle the answer questions, first one done
• A friendly raccoon guide with a hint that matches the answer key
• A visual answer key with answers marked in red, plus a short teacher note with what to watch for

How Teachers Use It

Each sheet follows the same three steps: read the short teach box, sort four items with the first one done for you, then answer three quick questions with the first one done for you. It takes 6 to 8 minutes and prints clearly in black and white. The focus skill is explaining how an invention changed society, part of TEKS 4.4A: explain how scientific discoveries and innovative solutions to problems impact science and society.

Why It Works

Real stories about real inventions and real jobs make science feel close to home. Each sheet stays inside one story, every question is one step, and wrong choices are believable, not silly. Pair it with the other seven Grade 4 Science and Society sheets to cover discoveries, inventions, their impact, and how to explore STEM careers.