Product Contents

・Relationship between numbers and quantities, understanding quantities
・Understanding ordinal numbers
・Understanding the relationship between larger and smaller numbers
・Addition and changes in numbers
・Subtraction and changes in numbers
・Multiplication and changes in numbers
・Division and changes in numbers
・Understanding analog clocks
・Utilizing the Japanese “Kuku” multiplication table

Product Principle

This product utilizes the effects of haptics, which enhance awareness of touched objects, and the generation of multimodal imagery through the cognitive integration of visual and tactile information to support the formation of number concept imagery.

[Enhancing Awareness through Haptics]
When receiving haptic feedback from touching objects, awareness of the object increases. Enhanced awareness makes it easier to form stronger and more concrete mental images. This process aids in creating imagery related to quantities and amounts associated with numbers.

[Cognitive Integration of Visual and Tactile Information]
Visual and tactile information is integrated within the brain through shared neural pathways, forming multimodal imagery. By combining the acts of “seeing” and “touching,” different sensory inputs are fused to create more concrete and comprehensible mental images.

How to Use

Progressing from Step 1 to Step 3, “seeing, touching, and reading aloud” step by step encourages the formation of numerical images.


[Step 1: Forming Images of Number Concepts and Quantities]
Numbers and quantities
From quantities to volume
From volume to size
Ordinal properties of numbers

[Step 2: Forming Images of Quantity Changes through Addition and Subtraction]
Quantity changes through addition
Quantity changes through subtraction

[Step 3: Forming Images of Quantity Changes through Multiplication and Division]
Quantity changes through multiplication
Quantity changes through division

[Additional Learning]
Utilizing the multiplication table (Kuku)
Understanding analog clocks

What is Dyscalculia?

Dyscalculia is a type of learning disability characterized by difficulty in forming mental images of quantities and amounts associated with numbers and significant challenges in forming and manipulating quantity imagery involved in basic calculations.

[Key Challenges]
Difficulty forming mental images of quantities and amounts associated with numbers
Difficulty understanding the relationships of magnitude between numbers
Difficulty manipulating quantity imagery involved in basic calculations

[Impact]
As a result of these challenges, the following problems may arise in academic and daily life:

Poor academic performance (especially in arithmetic and mathematics)
Difficulty managing money
Difficulty managing time
Difficulty understanding analog clocks

[Causes of Dyscalculia]
The cause of dyscalculia lies in the characteristics of brain functions involved in processing number concepts.