# Our Favorite Posts: From Flight to Discovery

Summer is a perfect time to reflect on the school year gone by. This week, Danna Bell-Russel of the Library of Congress showcases one of her favorite posts from 2012-2013.

As my colleagues know one of my favorite things is to show how primary sources can be used to help teach science or math. I love “From Flight to Discovery with Alexander Graham Bell’s Papers” because it provides an idea that helps teachers incorporate primary sources into a math lesson that will excite and engage students. The instructional activities presented can be used with elementary, middle and high school students to integrate science, reading, and critical thinking skills.

Tell us how you will use primary sources to enhance your math or science lessons.

### From Flight to Discovery with Alexander Graham Bell’s Papers

This guest post is from the Library of Congress Teacher in Residence, Earnestine Sweeting.

It didn’t occur to me until recently that my math lesson was missing a primary source.  After a simple search for “tetrahedron” or “tetrahedral kites” on the Library of Congress Web site, I was fascinated to find primary sources that could have enriched my geometry and measurement lessons.

To strengthen my fifth grade students’ skills in geometric fundamentals, I would schedule a few math periods for them to build a tetrahedron, which is a three-dimensional triangular figure. What I like most about this project is that it provides a challenge for students who crave multi-step problems to solve while it offers hands-on appeal for all. Tetrahedra are combined to design a tetrahedral kite. After some construction work with drinking straws, string, and tissue paper–plus a little will-this-fly skepticism–my students went out on a breezy day to see their tetrahedral kites take flight.

I was amazed to discover the use of tetrahedral units in the construction of kites found in Alexander Graham Bell’s Family Papers were the same principles I used with my students. Little did I know that Bell used the tetrahedral principle by combining triangular units to build very large kite structures. After reflecting on my students’ skepticism, I wonder if their reaction would have been different had I shared Bell’s theory of very large kite structures made out of light materials.

Image from Journal by Alexander Graham Bell, from January 2, 1903 to August 26, 1904

In Bell’s papers, he insisted that the lack of interest in kites arose from the false idea that a kite could only be a plaything or toy. I encouraged my students to refer to the structure only as a tetrahedron, rather than a kite. My rationale was not only to build their vocabulary, but also to emphasize the academic value in engaging in such a project.   This 1904 Washington Times article explains that Bell had long been interested in the flying machine problem, and became convinced that a successful kite will also make a successful flying machine.

• After reading this 1903 St. Louis Republic article, students can consider the process Bell used to find solutions to the problems he faced. Encourage students to compare and contrast how Bell’s problems were similar to those they’ve encountered in their own real-world endeavors–or those of others they might know.  How did Bell’s experiences contribute to the overall success of his flying machine?
• Ask students to think of a classmate or a friend who would benefit from reading Bell’s papers and explain the reasons for making the recommendation.  What can we learn from Bell’s argument to think differently about something once considered to have no practical use?

For additional resources, go to With Wings as Eagles: From Flight to Fantasy.

Share the discoveries you’ve made when using primary sources to add depth or historic achievements to your math or science lessons.

# June in History with the Library of Congress

June highlights include Flag Day and the beginning of summer.

# Memorable Professional Development from the Library of Congress – It Made a Real Change

“I had a paradigm shift. I went from trying to include primary and secondary sources to meet state standards to [an a-ha moment]! It is natural to include real resources because it adds quality and authenticity with a human face. I also will be able to take what I have been given and share, disseminate, using all the ‘propaganda’ you have given me into perpetuity, with rigor!”

# Our Favorite Posts: Kindergarten Historians

I love getting to see the students in Teresa St. Angelo’s classroom engage with the films and photographs and carefully identify evidence, of course. But the photos and stories in this post are also a valuable reminder that primary sources are powerful teaching tools at any grade level.

# Informational Text: Child Labor Reform Panels and Multimedia in the Early 20th Century

Common Core State Standards and many other standards require that students compare informational texts in different media. However, multimedia texts aren’t limited to the 21st century. In fact, one of the most compelling multimedia campaigns in U.S. history was launched more than one hundred years ago, using paper, glue, and an effective set of persuasive techniques.

You may know that Memorial Day was first called Decoration Day, but did you know that originally it honored only those who died in the Civil War? Primary sources from the Library of Congress can help students explore some of the ways people have commemorated Memorial Day in the past.

# Alexander Graham Bell, Educator

To mark Teacher Appreciation Week, we’d like to take a look at the work of Alexander Graham Bell, educator.

# May in History with the Library of Congress

May highlights include the first Mother’s Day and the origins of Memorial Day.

# Mexican American Migrations and Communities: A New Library of Congress Primary Source Set

Each of these historical artifacts is a part of the history of Mexican American communities in the 19th and 20th centuries. And each one can be found in the new Library of Congress primary source set, Mexican American Migrations and Communities.

# Gearing up for Bike Month with Primary Sources

May is Bike Month, a time to celebrate the many reasons that people around the world ride bicycles. In the United States, bicycles exploded in popularity in the 1890s. Although at first limited to the wealthy, bicycle use quickly became widespread.