Teen & Ten Boards Formation of 11 to 19: Purpose: To confirm that a child can successfully draw the association between the quantity (concrete) and the numbers (abstrac ... Short Bead Chains & Square Purpose: At the Preschool and Kindergarten level, the Chains are primarily practice in linear and skip counting. However, they are also preparatory activities for more advance ... Counting the Decimal System Bead Material Purpose: To help the child become familiar with the quantities and hierarchies of the decimal system. Age: 4-5 years old Materials: ... Golden Ten Bead Bars Purpose: To teach the child his numbers from 10 to 90 using the Bead Material Age: 4.5 – 5 years old Materials: ... Decimal System Bead Material (Decimal Quantity with Tray) Purpose: To familiarize the child with the names of the different hierarchies. Age: 4-4.5 years old Materials: ... Dot Exercise Game Purpose: To help a child carry out the operation of addition while focusing on the hierarchical value using a more abstract material. Age: 5 – ... Stamp Game Purpose: To compose quantities with the stamps for the use in operations. Age: 4.5-5 years old. Materials: A ...