# Interactive video lesson plan for: Nature of roots of quadratic equations | Discriminant of Quadratic Equation

#### Activity overview:

http://www.learncbse.in/ncert-class-10-math-solutions/

Nature of roots of quadratic equations
00:02 Q1. Find the nature of the roots of the following quadratic equations. If the real roots exist, find them:(i) 2 x^2– 3 x + 5 = 0 (ii) 3 x^2 – 4 3 x + 4 = 0 (iii) 2 x^2 – 6x + 3 = 0
00:14 (i)
00:58 Discriminant less than zero.No real roots exits.
01:27 (ii)
01:55 Detemine discriminant of Quadratic Equation
04:02 (iii) Nature of roots of quadratic equations Discriminant based practise question.

First combine all the like terms in the quadratic equation.
Secondly, degree of each term must drop from left to right starting from 2.

Nature of roots
In the standard form of quadratic equation ax^2 + bx + c = 0, the value D=b^2-4ac is called Discriminant of quadratic equation.Based on Discriminant, we say real roots or not exist for a quadratic equation or not.Group of problems are solved on Nature of roots of quadratic equation.
Nature of roots of quadratic equation.
If Discriminant D greater than 0 then real roots exist.
If Discriminant D less than 0 then no real roots exist.
If Discriminant D=0 then roots are equal.

Reference book for the above video is
National Council of Educational Research and Training (NCERT) Book for Class 10 Subject: Maths
This Video is also refers as CBSE Class 10 mathts NCERT Solutions Chapter 9 Quadratic Equations
This video is suited for CBSE Class 10 maths Quadratic Equations.

Pinterest
https://in.pinterest.com/LearnCBSE/
VImeo
https://vimeo.com/user37035365
Wordpress
https://cbselabs.wordpress.com/
Scoop it! LearnCBSE.in
http://www.scoop.it/u/learncbse
Blogger
http://rdsharmamathssolutions.blogspot.in/
Reddit LearnCBSE.in
http://www.reddit.com/user/learncbse/
Imgur LearnCBSE.in
http://imgur.com/user/learncbse
4Shared LearnCBSE.in
http://www.4shared.com/account/home.jsp#dir=oUxg5yB0
Tumblr
https://www.tumblr.com/settings/blog/cbseguesspapers.
Scribd
https://www.scribd.com/learncbse
Slideshare
http://www.slideshare.net/LearnCBSE37
Free NCERT Solutions for 9th
https://www.udemy.com/ncert-solutions-for-class-9th-maths-term-2-sa2/?couponCode=gyanpub
Free NCERT solutions for 10th
https://www.udemy.com/ncert-solutions-for-class-10th-maths-term-2-sa2/?couponCode=gyanpub
Phani CBSE
Visit us
http://www.learncbse.in

learncbse.in
CBSE solutions for Class 10 maths Quadratic Equations
CBSE Class 10 maths chapter 10 Quadratic Equations
CBSE Class 10 maths NCERT Solutions chapter 10 Quadratic Equations
nature of roots of quadratic equation discriminant
determine the nature of the roots of the quadratic equation

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

Play this activity

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

## Ready to see what elsecan do?

With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.

Quickfire

Carry out a quickfire formative assessment to see what the whole class is thinking

Discuss

Create interactive presentations to spark creativity in class

Team Up

Student teams can create and share collaborative presentations from linked devices

Clip

Turn any public video into a live chat with questions and quizzes

### Spiral Reviews by Teachers and Digital Learning Coaches

@kklaster

Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech

Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

@ordmiss

Absolutely amazing collaboration from year 10 today. 100% engagement and constant smiles from all #lovetsla #spiral

@strykerstennis

Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!