Student-Response White Boards
An alternative to the colored card review. This allows students to answer not only true-false and multiple choice questions as a class, but to also answer written response and math problems while allowing the teacher to quickly see which students are understanding which concepts and to reteach promptly.
Markers and erasers are kept in plastic bags. This allows the teacher to quickly and efficiently count and check in and out supplies and also to be sure that marker caps are on securely so that expo markers don't dry out.