Knex bricks make this an outstanding building set for the classroom. The 1200 Knex pieces and 20 building ideas enable children to build models at least 3 at a time working alone or as part of a group. When used as part of a science area in the classroom, it soons becomes a favourite with boys and girls alike. Three children can build independently with the materials, or three small groups of children can work as teams to follow colour coded instructions, or their own imaginations, as they build. Children learn and practice skills related to spatial relationships, collaboration and team work as they build and create. The materials are packaged in a strong stackable storage tray with movable dividers and a snap-on lid. This would be an excellent addition to any educational setting where children are encouraged to explore and challenge their imaginations.