## 📘 Chapter 1: Patterns in Mathematics – Overview **Patterns in Mathematics** introduces students to identifying, understanding, and extending patterns in numbers and shapes. Based on **NCERT** and aligned with the latest **Central Board of Secondary Education (CBSE)** curriculum, this chapter helps learners recognise regularities in numerical sequences and visual designs. Students explore **growing patterns, repeating patterns, and rule-based sequences**, learning how to find missing terms and form simple mathematical rules. This chapter strengthens logical thinking, observation skills, and problem-solving abilities, forming a strong foundation for algebra and higher mathematical concepts.

## 📘 Chapter 2: Lines and Angles – Overview **Lines and Angles** introduces the fundamental concepts of geometry based on **NCERT** and aligned with the latest **Central Board of Secondary Education (CBSE)** curriculum. In this chapter, students learn about basic geometrical elements such as **points, lines, rays, and line segments**, along with the measurement and classification of angles (acute, right, obtuse, and straight). It builds a strong foundation in geometrical understanding and develops essential skills in measuring and analysing figures.

## 📘 Chapter 3: Number Play – Overview **Number Play** focuses on building strong number sense as per **NCERT** guidelines and the latest **Central Board of Secondary Education (CBSE)** curriculum. This chapter introduces students to **factors, multiples, prime and composite numbers**, along with concepts like **HCF, LCM, and divisibility rules**. It enhances logical reasoning and numerical problem-solving skills, forming a key foundation for advanced arithmetic topics.

## 📘 Chapter 4: Data Handling and Presentation – Overview **Data Handling and Presentation** introduces students to the basics of collecting, organising, and interpreting data, as prescribed by **NCERT** and aligned with the latest **Central Board of Secondary Education (CBSE)** curriculum. In this chapter, learners study how to represent information using **tables, pictographs, and bar graphs**, and develop skills to read and analyse data effectively. It builds foundational analytical and interpretation abilities useful in real-life situations.

## 📘 Chapter 5: Prime Time – Overview **Prime Time** deepens students’ understanding of prime numbers in accordance with **NCERT** guidelines and the latest **Central Board of Secondary Education (CBSE)** curriculum. This chapter focuses on **prime factorisation**, including methods like factor trees and division, and explains their practical applications in solving problems related to **HCF and LCM**. It strengthens number sense and builds a solid foundation for higher arithmetic concepts.

## 📘 Chapter 6: Perimeter and Area – Overview **Perimeter and Area** introduces students to measuring boundaries and surface regions of basic shapes, as prescribed by **NCERT** and aligned with the latest **Central Board of Secondary Education (CBSE)** curriculum. In this chapter, learners calculate the **perimeter and area of squares, rectangles, and triangles**, understand appropriate units of measurement, and solve real-life problems related to space and boundaries. It builds essential foundations for higher-level mensuration concepts.

## 📘 Chapter 8: Playing with Constructions – Overview **Playing with Constructions** introduces students to basic geometrical drawing skills as per **NCERT** and the latest **Central Board of Secondary Education (CBSE)** curriculum. In this chapter, learners use tools like a **ruler and compass** to construct **line segments, angles, perpendiculars, and parallel lines**. It develops accuracy, spatial understanding, and practical geometry skills essential for advanced constructions.

## 📘 Chapter 9: Symmetry – Overview **Symmetry** introduces students to the concept of balance and proportion in shapes, based on **NCERT** and aligned with the latest **Central Board of Secondary Education (CBSE)** curriculum. This chapter explores **line symmetry and rotational symmetry**, helping learners identify symmetrical figures and patterns in mathematics and real life. It enhances visual reasoning and spatial understanding skills.

## 📘 Chapter 10: The Other Side of Zero – Overview **The Other Side of Zero** introduces students to the concept of **integers**, as prescribed by **NCERT** and aligned with the latest **Central Board of Secondary Education (CBSE)** curriculum. In this chapter, learners understand **positive and negative numbers**, their representation on the **number line**, and how to compare and order integers. It builds a strong foundation for advanced arithmetic and real-life applications involving gains, losses, and temperature changes.