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One woman watches as another examines with a magnifying glass an ornate, decorative image on a printed page

Primary Sources in Science Classrooms: Coal River and Human Impacts on Earth’s Systems

Posted by: Danna Bell

Individually and collectively humans exert both positive and negative influences on Earth's systems. Teachers and students studying the interactions among Earth's atmosphere, hydrosphere, geosphere, and biosphere and related human activity can explore images, manuscripts, and recorded oral history interviews from the Coal River community in West Virginia.

One woman watches as another examines with a magnifying glass an ornate, decorative image on a printed page

Multimedia Moment: A Mystery Sparked by a Century-Old Film

Posted by: Danna Bell

In my first Multimedia Moment post, I focused on the action in actuality street scenes. One of the films, the 1897 Edison film Corner of Madison and State Streets, Chicago, showed people walking across the street with large signs that appeared to be advertisements. I instantly wanted to know what was written on the signs.

One woman watches as another examines with a magnifying glass an ornate, decorative image on a printed page

Primary Sources in Science Classrooms: Mapping the Ocean Floor, Marie Tharp, and Making Arguments from Evidence (Part 2)

Posted by: Danna Bell

Textbooks and teachers often tell students about German scientist Alfred Wegener who went public in 1912 with his theory of continental drift. The scientific community did not widely accept Wegener's ideas during his lifetime and often derided colleagues who entertained the theory. Wegener passed away in 1930. Even as Marie Tharp was creating maps in the 1950s, scientists were actively constructing ideas and compiling evidence related to seafloor spreading and magnetic striping.

One woman watches as another examines with a magnifying glass an ornate, decorative image on a printed page

Primary Sources in Science Classrooms: Mapping the Ocean Floor, Marie Tharp, and Making Arguments from Evidence (Part 1)

Posted by: Danna Bell

What might a map from 1977, a poster from 1944, and a newspaper article from 1915 have in common with three twentieth century wars and the theory of plate tectonics? These three digitized artifacts in the Library of Congress’s collection have quite a bit in common when it comes to the emergence of evidence supporting a key theory in Earth science.

One woman watches as another examines with a magnifying glass an ornate, decorative image on a printed page

Primary Sources in Science Classrooms: Introducing Trey Smith, 2015-2016 Library of Congress Science Teacher in Residence

Posted by: Cheryl Lederle

I would in no way compare myself to Benjamin Franklin--for a number of very good reasons. However, as a newly minted science Teacher in Residence at the Library of Congress, I recognize that reflecting on Franklin, both as man and myth, might help me make sense of the opportunities ahead.

One woman watches as another examines with a magnifying glass an ornate, decorative image on a printed page

Keeping Humanity’s Collective Memory Alive

Posted by: Danna Bell

I have never been to Syria. I had only read about and seen images of the ancient ruins in Palmyra. I knew the 2,000-year old Greco-Roman structures were falling apart and had been for centuries. I had, however, no personal experience with them. But late last month, when news reports detailed their destruction, I found myself very upset, and tried explaining why to my children.