American Inventors and Their Ideas is a free printable Grade 3 to Grade 5 social studies worksheet on naming the inventor or founder behind a new technology or business, aligned to C3 Framework indicator D2.Eco.13.3-5. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.
Set 1 of 25 · the same problems every time you open this link.
1.Who developed a vaccine against polio in the 1950s?
A.Henry Ford
B.Louis Daguerre
C.Jonas Salk
2.Which inventor is the dot-and-dash telegraph code named after?
A.Madam C. J. Walker
B.Samuel Morse
C.Henry Ford
3.Who built a horse-drawn reaper for harvesting wheat?
A.Cyrus McCormick
B.Jonas Salk
C.Grace Hopper
4.Who invented the telephone in 1876?
A.Jonas Salk
B.Alexander Graham Bell
C.Cyrus McCormick
5.Who helped create early computer programming languages?
A.Grace Hopper
B.Cyrus McCormick
C.Louis Daguerre
6.Who found new uses for peanuts and taught farmers to rotate crops?
A.Alexander Graham Bell
B.Wilbur Wright
C.George Washington Carver
7.Who started a hair-care business and trained thousands of sales agents?
A.Madam C. J. Walker
B.Jonas Salk
C.Samuel Morse
8.Who announced a way to make photographs on metal plates in 1839?
A.Henry Ford
B.George Washington Carver
C.Louis Daguerre
LessonPrint · D2.Eco.13.3-5 · Set 1 · free to copy for classroom use
Answer key — American Inventors and Their Ideas
Set 1. Prints on its own sheet.
1.Jonas Salk
2.Samuel Morse
3.Cyrus McCormick
4.Alexander Graham Bell
5.Grace Hopper
6.George Washington Carver
7.Madam C. J. Walker
8.Louis Daguerre
Questions about American Inventors and Their Ideas
What does the American Inventors and Their Ideas worksheet cover?
It practices naming the inventor or founder behind a new technology or business — 8 questions for Grade 3 to Grade 5, all on C3 Framework D2.Eco.13.3-5: Describe how better tools and better skills let people produce more. The instruction to students is “Circle the person each sentence describes”, and the answer key follows on the next sheet.
Which C3 Framework indicator does American Inventors and Their Ideas practice?
D2.Eco.13.3-5, under Economics for Grade 3 to Grade 5. The published indicator reads: “Describe ways people can increase productivity by using improved capital goods and improving their human capital.” The worksheet assesses that indicator rather than a paraphrase of it.
What age or grade is this worksheet for?
American Inventors and Their Ideas is written for Grade 3 to Grade 5, typically ages 40-41. It is one of the sheets on D2.Eco.13.3-5, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.
Does American Inventors and Their Ideas come with an answer key?
Yes. All 8 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.
How many different versions of American Inventors and Their Ideas can I print?
25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.
Is American Inventors and Their Ideas free to print and photocopy?
Yes. American Inventors and Their Ideas, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.
More practice for D2.Eco.13.3-5
Describe how better tools and better skills let people produce more.