As adjectives, words can be used to describe the quality, quantity, and number of objects or things. These adjectives help us provide more information about the characteristics or attributes of the noun they are modifying. In the context of NCERT (National Council of Educational Research and Training) for Class 6, it is important to understand these concepts thoroughly. Let's explore each concept in detail.

b The Concept of Quality:
Quality refers to the characteristic or attribute of an object or thing. Adjectives of quality describe the nature, condition, or state of the noun. They provide information about the specific features or qualities possessed by the noun. These adjectives help in better understanding and differentiation of objects based on their attributes.

Examples of Adjectives of Quality:
- Beautiful: It describes the quality of being visually appealing or attractive.
- Intelligent: It describes the quality of having a high level of mental ability or smartness.
- Strong: It describes the quality of having a great physical power or capability.
- Delicious: It describes the quality of having a pleasant taste or flavor.
- Soft: It describes the quality of being smooth and gentle to touch.

b The Concept of Quantity:
Quantity refers to the amount or number of something. Adjectives of quantity provide information about the exact or approximate amount of the noun. These adjectives help in specifying the quantity of a particular object or thing.

Examples of Adjectives of Quantity:
- Some: It describes an unspecified or undetermined amount of an object or thing.
- Many: It describes a large number or quantity of objects or things.
- Few: It describes a small number or quantity of objects or things.
- All: It describes the entirety or complete amount of the objects or things.
- Several: It describes more than two but not a large number of objects or things.

b The Concept of Number:
Number refers to the count or numerical value of objects or things. Adjectives of number indicate the number of nouns being referred to. These adjectives help in providing clarity and precision in terms of the count or arrangement of objects.

Examples of Adjectives of Number:
- One: It indicates a single object or thing.
- Two: It indicates a pair or couple of objects or things.
- Three: It indicates a set of three objects or things.
- Many: It indicates a large or indefinite number of objects or things.
- First: It indicates the initial or primary object or thing in a sequence.

In summary, adjectives of quality describe the specific traits or attributes of nouns, adjectives of quantity indicate the amount or quantity of nouns, and adjectives of number indicate the count or numerical value of nouns. Understanding these concepts is essential for effective communication and comprehension.