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STANDARDS
CCSS: 3.OA.D.8, MP2, MP4, MP7
TEKS: 3.5A
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Daring to Discover
Illustrations by Juliette Toma (Art)
A hundred years ago, states approved the 19th Amendment to the United States Constitution. It guaranteed American women the right to vote. Women had been advocating for this right for decades. At the time, women were not considered equal citizens. Most occupations weren’t open to women. Even today, women—especially women of color—are still fighting for equality.
These barriers didn’t stop women from doing amazing things, including making advances in science, technology, engineering, and math (STEM). Meet three women who worked in STEM 100 years ago.
States approved the 19th Amendment to the United States Constitution 100 years ago. The amendment gave American women the right to vote. Women had been advocating for this right for decades. Women were not considered equal to men at the time. Most occupations weren’t open to women. Women are still fighting for equality today, especially women of color.
These barriers didn’t stop women from doing amazing things. Women made advances in science, technology, engineering, and math (STEM). Meet three women who worked in STEM 100 years ago.
Illustrations by Juliette Toma
Christine Ladd-Franklin
Visionary Researcher
Christine Ladd-Franklin studied math at Johns Hopkins University. But in 1882, she was denied her degree because she was a woman. Ladd-Franklin didn’t quit. She studied with researchers in Germany and became a psychologist, someone who studies the science of the mind and behavior. Her work helped reveal how people perceive colors.
Christine Ladd-Franklin studied math at Johns Hopkins University. But the college refused to give her the degree she earned in 1882. They refused because she was a woman. Ladd-Franklin didn’t quit. She studied with researchers in Germany. She became a psychologist. A psychologist is someone who studies the way humans think and act. Her work helped show how people perceive colors.
Miriam Benjamin
Inspired Inventor
Miriam Benjamin was one of the first Black women in the U.S. to get a patent. A patent is a legal document that gives inventors ownership over their inventions. In 1888, she patented the “Gong and Signal Chair.” The chair had a button you could press to ring a bell and display a red signal to tell others that you needed help. Similar technology is used today on airplanes in the flight attendant call button.
Miriam Benjamin was one of the first Black women in the U.S. to get a patent. A patent is a legal document. The document gives inventors ownership over their inventions. Benjamin patented the “Gong and Signal Chair” in 1888. The chair had a button. A bell rang when you pressed the button. It also displayed a red signal. You pressed the button to tell others that you needed help. Similar technology is used today on airplanes. It’s part of the button you press to call a flight attendant.
Agnes Chase
Bold Botanist
Agnes Chase loved studying plants. But in the early 1900s, people rarely funded female scientists’ research. So Chase raised the money herself. She traveled to South America to search for new species of grasses. Chase collected 80,000 samples and wrote dozens of books and papers. She became a respected expert on grasses.
Agnes Chase loved studying plants. But people rarely funded research done by female scientists in the early 1900s. So Chase raised the money herself. She traveled to South America. She searched for new species of grasses. Chase collected 80,000 samples. She wrote dozens of books and papers. She became a respected expert on grasses.
What STEM career would you most want to have, and why?
What to Do
A multistep word problem has more than one unknown value. You need multiple equations or operations to solve it.
Example
The 19th Amendment (women’s right to vote) was approved in 1920. The Voting Rights Act passed 45 years later. It helped ensure that votes—particularly those of Black women and other women of color—would count. How long ago did the Voting Rights Act pass?
Read the problem twice. Determine what’s being asked and what’s unknown.
Solve for the first unknown.
1920 + 45 = 1965
So the Voting Rights Act passed in 1965.
Use your solution to solve for the next unknown.
2021 – 1965 = 56
So the Voting Rights Act passed 56 years ago.
Johns Hopkins University awarded Ladd-Franklin her degree as part of its 50th anniversary celebration. Ladd-Franklin finished her coursework in 1882, 6 years after the university was founded. In what year did she receive her degree?
When Benjamin was 56 years old, she patented a second invention—a special shoe for giving medication. Benjamin was born in 1861. How many years after her first patent did Benjamin patent the shoe device?
Chase published her first scientific paper in 1906. She published her most well-known book, The First Book of Grasses,16 years later. Her book Grasses of the West Indies was published 5 years before. What year was Grasses of the West Indies published?