MassachusettsHISTORY EXPLORERS GRADES 3–8
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Quick glossary
evidence
Information from a source that helps us test a claim.
source
A document, object, image, or account we can examine.
inference
An explanation based on clues; it still needs checking.
migration
Moving from one place to another to live.
immigrant
A person who moves to another country to live.
estimate
An approximate amount, based on available information.
oral history
A recorded interview about someone’s memories and experiences.
community
People connected by a place, relationships, or shared activities.
ancestry
Family origins across generations.
primary source
Evidence created by someone who experienced a time or event.

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Maria Mitchell

1818–1889

Portrait of Maria Mitchell.
Portrait of Maria Mitchell. Image source & credit ↗
Massachusetts connection

Nantucket

Mitchell studied the sky from Nantucket and discovered a comet in 1847. She became an astronomer and teacher who encouraged women to study science. Her observations connected an island rooftop to international scientific work. Keeping careful records helped make her discovery useful to others.

You can use your device’s reading tools or read with a partner.

Find a detail. Build an idea.

  1. What did this person or group do? Point to a detail in the reading.
  2. What problem did this person investigate? Who else helped make progress?
  3. What would you like to find out next? Which kind of source could help?

“Maria Mitchell mattered because ___. A detail that supports my idea is ___.”

Follow the evidence.

This short reading is an original classroom summary. Open the source with your teacher to check details and learn more.

Read the source: mariamitchell.org ↗

Ask: Who made this source? What can it tell us? What might it leave out?

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