Some students in class today may have clear memories of the events of September 11, 2001. Some may have vague memories. Others may have been born years after the attacks. The 10th anniversary of 9/11 presents an opportunity for educators to explore with students what it means to experience history. Were students alive during the attacks? Do they remember them? How do their parents remember the attacks? How did adults they know make sense of the events as they happened? How do people who were alive during the attacks interpret the past when its events are close and painful? How long does it take for historians to find a framework in which to fit events such as 9/11? People watching the World Trade Center towers collapse knew that 9/11 would appear in history books later—what has happened during students' lifetimes that they think was "history in the making?"

One way to teach 9/11 is to compare and contrast it with other past events that witnesses believed were history in the making. Lesson plans often feature the bombing of Pearl Harbor and the assassination of JFK as comparable to 9/11, but what about the bombing of Hiroshima and Nagasaki? The assassination of Abraham Lincoln? The assassination of William McKinley? The Boston Massacre? The Springfield Race Riot of 1908?

How many people witnessed those events? How many of them witnessed them in person? How well were the witnesses prepared for the events? Did they know ahead of time what the effects might be? Did they share their eyewitness knowledge freely with others, or keep it secret? What did people write about these events immediately after they happened? Years after they happened? Does where something happens make a difference in how people react to it? Has technology made a difference?

Regardless of how you choose to teach 9/11 and whether or not you contrast it with other historical events, approach the subject thoughtfully and with clear goals. To honor the anniversary and to help you as you learn about, teach, and remember the day and its effects, we've gathered together our 9/11 resources on one page: "In Remembrance: Teaching 9/11."

Our spotlight doesn't include all of the many resources available online. More examples follow. Some were created in the immediate wake of 9/11 and some were created 10 years later, in the present day. You can use the older materials as they are, or use them as primary sources in their own right. They represent snapshots of writers, publications, and educators trying to make sense of a sudden, horrifying event.

If you are contrasting 9/11 with other traumatic events in U.S. history, you may want to compare these early reactions with early reactions to those events. How did schools, educators, and students react to violence in the past?

From 2001:

• A New York Times lesson plan published on September 12, 2001, suggests ways educators can help students think about and process the attacks.
• A Special Report from Rethinking Schools discusses teaching in the wake of the attacks.
• America Responds, a PBS website, documents PBS stations' responses to 9/11, maintained throughout 2001; it includes nine lesson plans.
• Scholastic catalogs its student and teacher resources published during 2001, on a subsite of its page created for the 1st anniversary of 9/11.

From 2011:

• Recordings of presentations from September 11: Teaching Contemporary History, a two-day conference presented by the Smithsonian National Museum of American History, National September 11 Memorial and Museum, Pentagon Memorial Fund, and Flight 93 National Memorial, consider how understanding of 9/11 has changed.
• Articles from the Organization of American Historians on teaching 9/11 draw on memories of 9/11 submitted to websites (follow the link and scroll down to the "Editor's Choice" selections).
• A free curriculum guide from the 4 Action Initiative includes more than 130 lesson plans for K-12.
• A call for teachers from the New York Times asks educators to contribute their strategies for teaching 9/11, and a later article pulls together NYT resources
• Two simple timelines look at themes related to the attacks at Pearson's Online Learning Exchange
• A free oral history lesson plan from Brown University's Choices program
• EDSITEment's lesson plans on 9/11 and heroism

Many websites and publications also offer primary sources, yet to be interpreted for educational use or packaged into lesson plans. If you have the time to search for and browse these materials, they can provide a rich base from which to assemble your own comparison of past and present. Here are some examples:

• The New York Times' "Times Topics" page collects all NYT articles and photographs that mention 9/11. It archives original coverage of September 11 and NYT anniversary pages from 2002 to 2006, as well as short biographies memorializing the victims of the attack (see "Portraits of Grief").
• Lectures and panels from Columbia University respond to and attempt to contextualize 9/11.
• Columbia University also created a guide to key documents on presidential, administrative, congressional, and international responses to 9/11.
• Archived television footage from ABC, BBC, CBS, CNN, FOX, and NBC spans September 11–13.
• Legacy.com's Remember: September 11 preserves biographies of the 9/11 victims, searchable by name, home city and state, and flight.
• Sourcebooks from the National Security Archive gather up primary sources related to U.S. policies on terrorism, Afghanistan, biological warfare, anthrax attacks, the Taliban, and Osama Bin Laden.
• More than 50 eyewitness interviews share memories on topics such as "Hijackers," "FBI," and "1993 WTC Bombing," courtesy of National Geographic.
• The American Red Cross's Exploring Humanitarian Law curriculum, while not focused on 9/11, models strategies for teaching about difficult subjects and thorny emotional and ethical questions.

When the 13 colonies first rebelled against England, they called on the help of established nations—including France and Spain—to succeed. After the Revolutionary War, the newborn United States gradually began to take part in world affairs itself, making payments and treaties, waging war, and withholding or offering aid. Today, the U.S. maneuvers its way through a constant web of decisions. Who does it choose to help and how? What kind of aid should it offer? Military? Economic? Social? When and why does it withhold aid? How have the choices it makes today grown out of those made in the past?

Following the March 11 earthquake that rocked Japan, your students may have questions about the U.S. and international aid. Or maybe they're curious about the uprisings in the Middle East, a part of the world with which the U.S. has a complicated history of trade, war, and aid.

A good place to start learning about U.S. aid history is, appropriately enough, the U.S. Agency for International Development, or USAID. Established in 1961 in an effort to separate non-military and military aid, USAID combined the social and economic aid efforts of a number of smaller initiatives under one "roof." Though the website's history page is dense, it provides a sense of the complexity of aid issues. If you want to dig a little deeper (and read a little more), download the primer on USAID. (The section on "Responding to Crises" may be particularly relevant right now.)

For statements on current events, check out the Senior Staff Speeches and Testimony section. Press releases also feature current information. For a broader view, search by location to learn more about USAID's work in Haiti, Egypt, Thailand, and other nations. Browse issues of USAID's newsletter, FrontLines, starting in 2003, to see what's been given the most press in the past few years.

Ready to head further back in time? In our Ask a Historian feature, look at aid in the Middle East, both non-military and military, during the 1950s.

Skip back a few years more and learn about the Marshall Plan, a well-known precursor of USAID designed to help Europe rebuild following World War II. USAID's small online exhibit on the Plan features audio, visual, and text primary sources, while the Library of Congress hosts an exhibit on the Plan. If you need more primary sources, try the document collection Truman & the Marshall Plan at the Harry S. Truman Library and Museum.

Of course, U.S international aid didn't begin with the 20th century and isn't limited to the federal government. Read up on the history of the American branch of the Red Cross, an organization founded by Clara Barton in the late 19th century. (The bibliography in the "Students" section recommends American author Pearl S. Buck's 1948 children's novel The Big Wave for learning about tsunamis. You might consider introducing this novel to students as a primary source itself, reflective of Buck and the context in which she wrote.)

Consider having students trace the U.S.'s relationship with a particular country or region back in time. For instance, what part is the U.S. playing in events in Libya now? What is our stance on the country and events there? What was it back in the early years of the U.S.? (For an idea, listen to historian Christine Sears describe the First Barbary War, one of the U.S.'s early overseas conflicts.) Between then and now, how has our position changed and evolved? Have we given aid or taken it away? When and how?

As it has grown in power, the U.S. has shifted in its relationship to other parts of the world again and again. Exploring the history of international aid might help you (or your students) follow these shifts through time and gain a better understanding of responses and relationships today.

Music has been a source of inspiration, of protest, of wisdom, and of emotion for millennia. In the United States, music became woven into the fabric of our culture well before we became a nation, and it remains so today. Through songs of protest and patriotism from the 18th and 19th centuries to music of today commenting on and influencing social or political issues, music has found its way into nearly every era and event in American history, inspiring it or reflecting on it.

Beginning in my early teens, I recall being affected by the political and social messages in the music to which I listened. In fact, my music-inspired evolution toward civic-mindedness greatly influenced my decision to teach social studies. As an American history teacher, I found significant success employing music in my lessons. Students in my class might get a sampling of some Joe Hill union songs from the IWW; 1960s protest songs such as "Masters of War" by Bob Dylan; a taste of punk rock music from the Bad Brains, Black Flag, or Minor Threat that raged against governmental policies or notions of class from the Reagan era; or hip-hop songs from Public Enemy, A Tribe Called Quest, NWA, or KRS-one that lamented urban blight of the 1980s and 1990s.

These songs became sources integral to our wrangling with the experiences of the past and examination of contemporary social and political issues. We often laughed at the vocalists or the crude recording and instrumentation, but our mission was to analyze the meanings behind the songs in terms of their significance to history and the social studies. We treated these songs for what they are: cultural contributions critically relevant to the past, present, and future of our society.

I am certain that sharing these songs with my students engaged them in the content for a time. I am also certain that they enjoyed the unusual activity of listening to music in class, hearing my commentary of the artists, and discussing, for example, the characteristics of Dylan's voice or the bombast that was 1980s hardcore punk rock. However, my goal was beyond just engagement. Whether reflecting on or being a part of the context, these songs contained meaning. They represented a look inside the lives of the songwriters and the stories they had to tell. These songs allowed us to be more aware of our own world. They held the potential, as do other relevant sources in the social studies, to humanize us.

I am heartened when I communicate with prospective history educators who believe in the idea of teaching history beyond the textbook. These future teachers share innovative ideas of image and document analysis in an effort to move students toward developing historical habits of mind and keen interest in the world around them. It is my contention that teachers can and should consider the use of music in the same way they consider more archetypal sources—as essential to effective teaching.

It has been my experience that the following strategies work well when engaging students in listening to and analyzing music in the classroom.

1. Using a modified inquiry method where students are unaware of the relevancy the song(s) has in terms of the lesson heightens student interest and allows for some creative interpretations and deep analysis. In this strategy, students will listen to the music (with lyrics up on the screen in front of class) and are asked to analyze the lyrics in an attempt to discern the salient meaning. Students would likely be using text sources/artifacts as well to provide context and foundational knowledge. This can be done as an individual or group activity with a class debriefing to follow.
2. Listening to the song and carefully analyzing the lyrics and tone in the direct context of the historical, social, or political event I am teaching is another way of using music effectively in class. Teachers employing this more traditional strategy post lyrics on screen while students listen to and interpret meaning individually and as a group. This method provides opportunity to share songs with narratives contrary to the traditional, which can foster cognitive dissonance, important to any worthwhile history and social studies class.
3. Borrowing from Drake and Nelson's (2003) History Research Kit, a teacher may use one particular song as a "first-order" source. In this strategy, the teacher shares the song and analyzes and interprets meaning with the students as the principle source for the lesson. The second-order songs might include two or three songs with other interpretations of the event(s) covered in the lesson. These songs are analyzed as a model for students to follow for the third-order songs. For those songs, the teacher asks students to seek their own sources (songs or other artifacts) that either support or refute the meaning from the teacher-provided songs. Allowing students the opportunity to find their own sources serves to empower students to do history, which has great potential to result in deep understanding and meaningful learning.
4. Intrepid teachers comfortable with software used to create music may promote the idea for students to create their own music related to history, or, more broadly, social studies content. Clay Shirkey (2010) notes that digital natives are accustomed to creating using technology, therefore, actively involving students in such creative endeavors might be truly beneficial to their learning. One of the aforementioned methods might serve as a precursor to this strategy. My success with this method has come when my students were keenly familiar with music analysis and interpretation. Asking students to engage in this activity without prior experience will likely yield disappointing results.

Please note: If your thoughts are drifting toward sharing "We Didn't Start the Fire" by Billy Joel or songs from some new website advertising "American History Learned through 50 Rock-n-Roll Songs" where a songwriter has penned songs related to salient events in American history, please be cautioned. What I am referring to here is quite different. My goal is to engage students in listening to or creating music that requires more from students. The music presented ought to be considered as carefully as when choosing just the right letter between Abraham Lincoln and Joshua Speed, or the parts of George F. Kennan's Long Telegram to share. I don’t mean to disparage Billy Joel; I am, in fact, a fan. I'd just rather listen to The Stranger or The Nylon Curtain . . . you know, the old stuff is always better.

In February, Teachinghistory.org rounded up sesquicentennial resources state by state. Now, with April and the anniversary of the April 12 bombardment of Fort Sumter upon us, let's look at some materials that aren't state-specific.

Peruse the blogosphere for updates on new materials and tips on finding the best of preexisting websites and archives. Education Week's blog "Curriculum Matters" posted two entries looking at websites, curriculum, and blogs focusing on the sesquicentennial in March: one entry on the 21st and one on the 24th. Watch for more to come.

The American Historical Association blogged on teaching the sesquicentennial, and History News Network gave the anniversary a turn as a hot topic. Plenty of individuals have set up blogs of their own to track sesquicentennial developments—look around, and see if anyone's taking a tack that interests you. Remember to assess the credentials and viewpoints of any blog you follow—who's writing it, and what is their goal in writing?

Here are two blogs whose "authors" you might recognize: the New York Times' "Disunion" and the Washington Post's "A House Divided". Both blogs feature entries by historians, published authors, and others (remember to assess the credibility of these writers for yourself, just as you would with an individual blogger!) on Civil War topics.

"Disunion"'s short-essay-style articles often include links to primary sources, while "A House Divided" answers questions on the Civil War. (Browse the Post's "Civil War 150" feature for more videos, articles, and event updates related to the sesquicentennial.)

If you're looking for lesson plans, the Civil War Trust recently released a new free curriculum set , including nine lessons and an exam for each level (elementary, middle, and high). The Trust's website also includes primary sources, maps of battlefields, a directory of Civil War sites, and more than 50 other lesson plans.

EDSITEment has an abundance of lesson plans—more than 40 related to the war. Also try the Smithsonian National Museum of American History's History Explorer for more than 80 lesson plans.

The American Red Cross, working with teachers, academics, and legal scholars, has developed a series of lesson plans entitled The American Civil War: A Humanitarian Perspective. Through activities that use primary sources, students learn about the roots of the American Red Cross through Clara Barton's work, battlefield conduct laws created by President Lincoln that predate the first Geneva Convention, and basic principles of humanitarian law.

Looking for some orientation to all of those sources? Sign up for one of the Smithsonian's April webinars designed to show teachers around Smithsonian Civil War resources. Or explore the Library of Congress's guide to 21 sources related to Southern secession.

The National Archives and Records Administration (NARA) invites you to examine the Civil War through "little-known stories, seldom-seen documents, and unusual perspectives" in their new exhibit "Discovering the Civil War", including lesson plans and other teaching resources.

The Library of Virginia's online exhibit "Union or Succession" also focuses on primary sources from the debate over secession. Check out the Library's "CW 150 Legacy Project," too—are any organizations in your area working on collecting sources?

How about primary sources such as letters from Lincoln, Grant, Lee, and other Civil War era figures? Today in the Civil War: Dispatches from the Rosenbach Collection reproduces Civil War-era documents from the Rosenbach Collection 150 years after their creation. Each day a new item is posted, accompanied by a full or partial transcript.

This barely scratches the surface of the Civil War materials available to you. Maybe you'd rather listen to your Civil War history—Gilder Lehrman offers more than 20 podcasts on the Civil War era. Longwood University also has you covered, with its "That a Nation Might Live" podcasts following the war week by week.

Would you rather follow (present-day) events as they unfold? Track commemorations nationwide with the National Park System's Civil War website.

Take a look around the Internet, see what else you can uncover, and share your finds in comments here! The sesquicentennial starts this month, but it will last for years. New resources will appear, and established ones will expand, so keep your eyes open!