Seguin Number Boards I, 11-19: The Key to Understanding Tens

Understanding the decimal number sequence is crucial for further mathematical skill development. The Seguin Number Boards I, which focus specifically on the numbers 11 through 19, offer children a tangible and insightful way to grasp these complex numbers. Numbers 11 through 19 are often challenging to understand, mainly because their names are not easily derived from the base number ten.

The Seguin Number Boards I consist of two sturdy wooden boards, each with nine slots numbered with 10. The child inserts wooden number cards from 1 to 9 into these slots, revealing the complete numbers. This concrete system not only helps in recognizing and naming numbers but also strengthens the understanding of the decimal system. The child learns to recognize the sequence of numbers and practices composing numbers in a playful yet effective manner.

This material is ideal for children just beginning to learn numbers, as it provides them with a solid foundation in the ten-structure, which is essential for understanding larger numbers later. The Seguin Number Boards are designed to support the transition from concrete to abstract mathematical concepts. In addition to the wooden boards and number cards, the child can further practice using the optional set with colored beads and ten bars (sold separately).

Learning Opportunities with the Seguin Number Boards:

• Understanding the structure of tens.
• Practicing number composition.
• Recognizing the sequence of numbers.

Didactic Use:

The instructor places the Seguin Number Boards on the table, with the number cards 1 through 9 beneath. Then, starting from the right, the instructor slides the number 1 into the top slot, covering the 0 and revealing the number 11. By repeating this action for all numbers, the child is gradually guided into understanding composite numbers. After the demonstration, the child can continue practicing independently and, for example, use the "Box with Bead Material" (sold separately) to determine how many beads correspond to each number.

Dimensions:

• Storage box: approx. 44 x 15.5 x 4.5 cm
• Seguin Number Boards: approx. 40.5 x 11.5 x 1.8 cm
• Number cards: approx. 6 x 7 cm

Contents:

• 1 storage box (beech wood) with lid (plywood)
• 2 Seguin Number Boards, wood
• 18 number cards

With the Seguin Number Boards I, a child lays a solid foundation for mathematical skills by playfully gaining insight into the structure and sequence of numbers.