The KEVA Brain Builders set by MindWare develops spatial reasoning by transforming 2D diagrams into 3D structures. This STEM-focused activity introduces a new way to engage with KEVA planks through guided building challenges. The set includes 30 double-sided cards that display technical drawings from multiple angles—front, side, and overhead views. These cards progress in difficulty, starting with simple designs and advancing to more complex builds. Users must analyze balance, proportion, and geometry to accurately recreate each structure using the included 20 KEVA planks. After attempting a build, the solution can be checked by flipping the card. The designs feature a variety of objects, from everyday items like picnic tables to imaginative shapes like swans and snails. The activity encourages problem-solving through trial and error, reinforcing patience and spatial awareness. All components are stored in a zippered carrying case for easy transport and organization.