This Pearl Harbor CSI investigation is a WWII document analysis activity where students examine classroom modified 1941 intelligence reports and use CER writing to form a historical claim. Acting as analysts on the eve of the attack, students evaluate radar sightings, diplomatic messages, foreign intelligence warnings, and local rumors to determine which signals were credible and what Japan appeared prepared to do.

Students read eight pieces of historical evidence, assess credibility, identify patterns, and craft an evidence-based intelligence briefing. This inquiry-driven lesson helps students understand why the attack on Pearl Harbor was difficult to predict and strengthens critical thinking, source evaluation, and CER writing skills.
 
Grades: 8-12
Estimated Duration: 1-2 Days
DOK: 2-3

What’s Included:
Pacific Intelligence Dossier (eight paraphrased historical documents)
Mission Brief 
Student Analyst Report - 4 page analyst document that guides students through 3 stages: Evidence Analysis, Pattern Recognition, and a short CER writing report to Naval Command. 
Teacher Guide with step-by-step instructions. 
Pacific Region Reference Map
Sample "Document L" - perfect as a warm up to guide students through the process of analyzing historical documents. 
3 point Scoring Rubric 
 
Perfect for middle and high school U.S. History or World War II units.