This Math Pack collection contains 24 multi-color plastic worksheets. Size 6" (15 x 15 cm.). Activities designed for square and circular geoboards. To work with geoboards which have square hooks (5 x 5 hooks): these activities facilitate the mathematical understanding of segments, open and closed polygonal lines and the calculation of areas, perimeters, and more. To work with geoboards which have circular hooks (24 hooks): these activities are appropriate for learning the concepts of radius, diameter and chord and they are very useful for building inscribed figures, regular polygons