Revised study guide with answers removed (moved to key), added student work areas, and fixed page break issues.

Revised Visual Gallery consolidated to exactly two pages with consistent branding, full URLs, and better spacing.

Revised Primary Source Archive with corrected dates, improved page breaks, and wrap-around URLs for better legibility.

Revised teacher guide with consolidated sections, improved page-break handling, and higher contrast labeling.

Revised speaker notes with improved page-break handling, corrected terminology, and instructions for new slides.