The Weather alert survival kit provides light, communication, protection, comfort, and First Aid, three outside pockets and two large zippered inside pockets, a quick release buckle. Measures 10x6x5inch
Spiral of Theodorus Kit is to explore triangular relations by studying right triangles and by building the Spiral of Theodorus. Contains 18 wooden triangles, labels, pen and instruction guide. Hands-on activities aid in the conceptualization of abstract mathematical ideas