Incite your historians' curiosity with forms of warfare used during WWI. An anticipatory set has learners considering life in a trench, leading to a trench warfare discussion. A lecture is complemented by images (linked) and the textbook, although it is unclear how pupils are to use it. A resource on chemical warfare and images guide a second discussion. Note: A textbook is referenced in this resource, but the first two parts of the activity could be effective without it.