Expressions Using Letter Numbers | Chapter 4 Of NCERT Ganita Prakash | CBSE Class 7 Maths Chapter 4 скачать в хорошем качестве

Expressions Using Letter Numbers | Chapter 4 Of NCERT Ganita Prakash | CBSE Class 7 Maths Chapter 4

To Get Live 1:1 Instant Demo Class, Register On - https://sisyaclass.com/10xboostercour... Ever heard someone say “Let the number be x…” and wondered why letters are being used in a maths problem? This lecture by Snehal sir takes you into the world of expressions using letter numbers – a topic that lays the foundation for algebraic thinking and real-world maths applications. 🧠 Timestamps 00:00 – Introduction to Letters and Changing Values 00:43 – What is the Meaning of “Notion”? 01:26 – What Does the Notion of Letters and Numbers Mean? 01:49 – What are Variables in Algebra? 02:44 – Difference B/w Fixed Numbers & Changing Values 03:47 – What are Variables? 04:05 – Word Problems That Use Variables 06:27 – What Are Called Letter Numbers 06:52 – What is an Algebraic Expression? 07:09 – Difference Between Arithmetic and Algebraic Expressions 09:25 – Observing Patterns and Repeating Behavior in Algebra 10:00 – Introduction to Visual Patterns with Matchsticks 11:29 – Deriving a Formula to Represent Patterns Using Variables 13:44 – What is an Algebraic Expression in Cost Calculations? 14:46 – Using Expressions for Total Cost of Items 15:38 – Finding Expressions for Any Quantity of Items 17:24 – Perimeter Formula for Square and Rectangle Using Variables 18:29 – Apply Formulas with Given Side Lengths 19:15 – Formula for Perimeter of Equilateral Triangle 20:12 – Formula for Perimeter of a Regular Pentagon 21:02 – Formula for Perimeter of a Regular Hexagon 21:41 – Expressions for Combined Length of Pipes 22:51 – Introduction to Word Problems with Algebraic Expressions 23:36 – Translating Sentences to Algebraic Expressions Join us in this detailed, story-driven session on Class 7 Maths NCERT Ganita Prakash Chapter 4 – Expressions Using Letter Numbers, where you’ll explore how and why letters are used to represent numbers — not just theoretically, but in fun, relatable, and practical ways. 📌 What You’ll Learn in This Chapter: 🔸 The concept of the notion of letter numbers and why numbers like 5, 10, or 17 aren’t always enough in mathematics 🔸 How variables like x, y, a, b can help create flexible expressions that apply in any situation 🔸 The difference between arithmetic expressions and algebraic expressions 🔸 Real-life examples of expressions using letter-numbers: age problems, shopping bills, perimeter and area formulas 🔸 Word problems transformed into class 7 maths full chapter style expressions 🔸 Building expressions using your own letters – create your own variables for fun situations 🔸 Understanding patterns in matchsticks and how they translate into algebra 🔸 Crafting meaningful expressions from perimeter problems (square, rectangle, triangle, pentagon, hexagon) 🔸 Story-based algebraic modeling: coconut-jaggery purchase, pipes for the garden, school supplies shopping This session isn’t about memorizing formulas — it’s about understanding how expressions work and how maths becomes a powerful tool when numbers are replaced with letters and logic. If you’re studying Class 7 NCERT Ganita Prakash, this chapter is your doorway into algebra. By the end of this video, you’ll not only understand the expressions using letter numbers class 7 NCERT concept, but also be able to create your own algebraic models to solve problems around you — like age, distance, money, shapes, and even patterns! 💡 Perfect For: 1. CBSE students revising Class 7 Maths Chapter 4 2. Learners looking for a visual and story-based understanding of expressions using letter-number explanation 3. Teachers and parents looking for CBSE online classes with practical examples 4. Students who find maths boring — this video will change that! 🎓 Brought to you by SISYA Classes, this lesson is aligned with the CBSE Class 7 Maths Syllabus and taught in an engaging, easy-to-understand tone to help every child learn better, not harder. #expressionsusingletternumbers #class7mathsncertganitaprakashsolutions #cbseclass7mathschapter4 #thenotionofletternumbers #class7mathsfullchapter #ganitaprakashclass7chapter4 #cbseonlineclasses #sisyaClasses #class7 #onlineclass