Compare-and-contrast is often taught as a formatting exercise: two columns, some transitions, done. In history, it can be much more. When students compare a textbook narrative with primary evidence, they are testing one account against another.

This is the move Loewen makes throughout his book. He sets a textbook claim beside outside evidence and asks which holds up. Students can do the same on a smaller scale.

The assignment works because the comparison has a purpose. Students are not just listing similarities and differences; they are deciding which account is more reliable. That decision forces them to state criteria.

The lesson structure below takes about three class periods.

Structuring the Lesson

Pick one event and gather a short textbook passage plus two primary sources. Students read all three and fill in a comparison organizer. The organizer is the bridge to the essay.

• Record what each source says about who acted and why
• Note the tone and language each source uses
• Mark any details that appear in one source but not the other
• Identify the author, date, and purpose of each source
• Write one sentence about which account seems more reliable and why

Turning the Organizer into an Essay

Encourage a point-by-point structure organized around criteria such as evidence, perspective, and completeness. That is stronger than describing one source and then the other. It keeps the comparison active throughout the essay.

Students should end with a clear judgment and an acknowledgment of what each source does well. Even a flawed textbook passage may have useful strengths. That balance shows mature reasoning.

What to Look for When Grading

Look for a thesis that names a judgment, direct references to specific passages, and explicit criteria. Watch for essays that describe but never compare. Those need a comment asking the student to say what the differences mean.

A rubric-based AI tool can flag essays that list differences without drawing conclusions and produce a draft note for each. You can then focus your own comments on the deeper issues of reasoning.

Variations for Different Levels

For younger students, use shorter sources and a guided organizer. For AP or college students, add a scholarly article as a third layer and require an explicit discussion of source limitations. The core structure stays the same.

Repeat the assignment across the year with different topics. Students improve noticeably when they see the same task more than once. It also lets you track growth on the same rubric.