RS Aggarwal Solutions Class 7 Chapter-18 Reflection and Rotational Symmetry (Ex 18B) Exercise 18.2 - Free PDF
FAQs on RS Aggarwal Solutions Class 7 Chapter-18 Reflection and Rotational Symmetry (Ex 18B) Exercise 18.2
Q1. What is the purpose of the chapter Reflection and Rotational Symmetry in the Class 7 syllabus?
The main purpose of the chapter Reflection and Rotational Symmetry is to let the children of class 7 understand the concept of position and different movements they see in their daily life. This will make them confident in giving directions and taking proper movements. Once the students get a sound knowledge about this topic and develop concepts on Reflection and Rotational Symmetry they can easily do many things in Physics. Symmetry is one of the most important concepts in Physics since starting from making wheels to designing machines and motors all depend upon the concept of symmetry. Studying this topic also improves their organizing skills in chaotic situations. Download the PDF file of Chapter 18 from class 7 for practice from Vedantu website.
Q2. What are the other types of symmetry in geometry?
Other than reflection and rotational symmetry there are other types of symmetry in geometry like translational symmetry, helical symmetry, glide reflection symmetry, double rotation symmetry, and non-isomeric symmetries. However, at class 7 level only reflection and rotation symmetry are included which are easy to understand and start with for developing the concept of symmetry and prepare themselves for more advanced concepts of symmetry both in Maths and physics in higher classes. Reflection symmetry also includes the concept of line symmetry. They should develop the concept that in two dimensions there is a line symmetry and in three dimensions there is a plane of symmetry.
Q3. How to start preparing for JEE Mains Maths from the class 7 level?
Students who dream to achieve the best career in engineering should start their preparation right from the Class 7 level. Studying Science and Maths in a way that they develop good concepts from the very beginning is the most important thing for them. They can grow sound concepts in Maths if they practice a lot from different books apart from studying conceptually. NCERT, RS Aggarwal, and RD Sharma should be studied and practiced for growing confidence from the lower classes themselves. The students who want to achieve more and have a desire to increase their knowledge for JEE Mains from class 7 level should refer to books like Pearson IIT Foundation Series Mathematics for class 7. They can practice the exercises and examples from this book and build that extra confidence in them to sit for IIT in the future.
Q4. What are the benefits of using online education platforms like Vedantu?
Online coaching classes are quite beneficial to the students and this system of teaching could soon be a substitute for the offline teaching methods. The benefits they provide are as follows:
They do not put boundaries to knowledge and give opportunities to all learners to study
Students develop better time management skills by attending classes on exact time
The apps are so handy that the students can carry and study whenever and wherever they want
Students get the best innovations in teaching, learning, and practices
The result and learning outcomes are quite satisfactory among the students.
More students can study in online classes at a time than in offline classes.
Students can connect and get the answers to the doubts anytime they want
They don’t have to spend time and energy travelling to offline classes.
If the online educational platform is renowned and reliable like Vedantu then students and their parents don’t take any anxiety in searching for tutorials and private tuitions.
Q5. How can teachings in online classes be improved?
In today’s world there is competition among the different online education platforms to prove themselves. They can further improve them and draw the student’s and parent’s attention by regularly updating them with innovations of new technology options and using them for the benefit of the students. The online platforms should have an option to work with the parents also apart from connecting to individual students also which Vedantu has already done. Another most important thing which the online classes should consider is to keep counselling classes for both the students and parents.