Learn about the siege of Boston and play a game of "siege." Make and wear a pretend Ta'ovala, bark cloth wrapping, like the people of Samoa. Perform the famous flaming gummy bear experiment while learning about oxidation and reduction. And make your very own town play mat in the arts and crafts section of this unit. All this, dozens more explorations, plus printables, library lists, additional layers, web links and more are included in Layers of Learning Unit 3-18. This is part of a unit study covering four subjects: history, geography, science, and the arts. It is designed to be used family style with all ages from 1st graders up to 12th graders learning together. Each book is in full color and includes printables at the end. Learn more about the Layers of Learning Curriculum at Layers-of-Learning.com.