Number System Lecture -1 Class 9 IX Math Term -1 CBSE Free Education

#Class09Preparation #class09maths #numbersystemclass09ncert #freeeducation # free Number System : CBSE Class 09 IX Math. Let's watch this amazing topic - Number System for your effective Board Exam - Math Preparation with proper explanation by your favorite teacher. In this session, you will find Tips, Tricks, and Strategies in detail to score full marks in class 09 maths. So, Don't Miss It!! Here's a breakdown: Descriptive Summary of the Number Systems Introduction In this educational session, the instructor introduces the first chapter of the Class 9 Mathematics curriculum, focusing on the Number System. This chapter is deemed crucial as it lays the foundation for understanding various mathematical concepts. The instructor emphasizes the importance of grasping the content thoroughly, as it will be beneficial throughout the students' mathematical journey. Overview of Number Types The chapter begins with an exploration of different types of numbers, categorized as follows: 1. Natural Numbers (N): Defined as the set of positive integers starting from 1 and extending to infinity. Examples: 1, 2, 3, 4, ..., ∞. Also referred to as Counting Numbers because counting begins from 1. 2. Whole Numbers (W): This set includes all natural numbers along with 0. Examples: 0, 1, 2, 3, ..., ∞. The smallest whole number is 0, while the largest is still infinity. 3. Integers (Z): Comprises all whole numbers and their negative counterparts. Examples: ..., -3, -2, -1, 0, 1, 2, 3, ... The smallest integer is -∞, and the largest is +∞. 4. Rational Numbers (P/Q): Defined as numbers that can be expressed in the form of a fraction where both the numerator (p) and denominator (q) are integers, and q ≠ 0. Examples: 1/2, 3/4, -5/6, etc. Rational numbers can be positive or negative, and they include integers as well. Number Line Representation The instructor explains how to represent these numbers on a number line, illustrating the placement of natural numbers, whole numbers, integers, and rational numbers. The number line is depicted as a continuous line with arrows indicating that it extends infinitely in both directions. Finding Rational Numbers The session also covers methods to find rational numbers between given values. For instance, to find a rational number between two fractions, students can use the formula: \[ \text{Rational Number} = \frac{x + y}{2} \] where x and y are the two given rational numbers. The instructor provides examples to demonstrate this method, emphasizing the ease of finding multiple rational numbers by adjusting the numerator and denominator. Conclusion In conclusion, the instructor reiterates the significance of understanding the number system, as it forms the basis for more advanced mathematical concepts. Students are encouraged to practice identifying and working with different types of numbers, as well as representing them on a number line. The session ends with a reminder that mastering these foundational concepts will greatly aid their future studies in mathematics. 👉 Do watch the complete session to know about the Real Numbers, Don't forget to share this video with your friends and classmates. ✴️✔️ Do 𝐒𝐔𝐁𝐒𝐂𝐑𝐈𝐁𝐄 to the channel for more updates and hit that like button! ❤️ for daily updates (Turn on your notification 🔔 to get all updates before anyone!!)