Word Walls are an effective strategy for building vocabulary with students, especially for subject-specific terms. These lists are usually posted on classroom walls and sometimes have a definition attached to them. A more interactive word wall that includes images requires students to be more active learners as they attach meaning to each of the words in the list. Teachers may post these in the classroom after first using them as teaching tools when introducing a concept.
Besides the basic "Free Rice" -- where students practice vocabulary and earn rice for the World Food Programme -- they can also choose from subjects: Art, English, Chemistry, Geography, Language Learning, and Math