The Middle Ages for Kids - Learning modules, European Medieval Times - from the  dark ages to the Renaissance - feudalism, the church, castles and commoners, rise of towns, crusades, the plague, the triumphs, the defeats, the Magna Carta and more. 

Feudal Japan: S.P.A.M. (Samurai, Peasant, Artisan, Merchant) - (1 day) Lesson Plan, Game. 

Russia: Start of the Russian Revolution - (3-4 days) Lesson Plan.

World Cultures: What is Culture? (90 minutes) Lesson Plan with handout 

Australia's Great Barrier Reef (2-3 days)  Lesson Plan and Personalities Handout.
See also: Australia

India/Pakistan Dispute over Kashmir  (4 days) Mini-Unit with Background and Handouts

Israeli-Palestinian Conflict  (2 days) Simulation for the Classroom with background, role descriptions

Propaganda Techniques  Can YOU find the secret messages hidden in propaganda?
It's not as easy as you might think. What is propaganda anyway?

As some of you know, before he became a teacher, Mr. Donn spent a career in Military Intelligence as a member of the SSA at NSA (the National Security Agency, or the No-Name Agency, as they like to say in the movies.) This lesson includes propaganda materials we do not often see as they are typically dropped in massive quantities over enemy territory. Very neat stuff! Feel free to use these materials in your classrooms.

Colonial Mexico  The Pre-Independence Mexican Indian Uprisings; Did they help or hinder Mexico's drive to independence from Spain? (Rise of Democratic Ideas; 19th Century, 9th-grade World History) This is a learning module Don created in college. It had useful information, so I threw it online. Hope it helps!

Holidays Around the World - Ancient Roots, Modern Holidays; mini-learning modules for over 30 different holidays, with holiday games, lesson plans, activities, for the classroom. 

WW2 - The Home Front 
WW2 - Leaders in the News
WW2 - Headlines in the News
WW2 - More Lesson Ideas - Neutrality, National Interest, Hiroshima