REAL NUMBERS(LECTURE 5)

March 27, 2020

REAL NUMBERS_CLASS 10

LESSON 5

Dear Students,

Yesterday we covered the following learning outcomes:

Recall the sum of a rational and an irrational number is irrational
The difference of a rational and an irrational number is irrational
The product and quotient of a non zero rational and an irrational number is irrational

Let us go through the guidelines for my blog once again:

· The text in Red, is to be written in your register

· The text in blue is to be viewed by clicking on it

· The text in green is to be practiced for home work

· Follow the instructions (such as write / view / recall....) as and when they appear in my blog

· I will be with you on this blog from 9:30_am till _10: 20 am so that I can address to any queries that you may have when you go through the lesson. However, if you post any query after this, I will address to that only on the next day during the same slot.

take your SET-A Mathematics Register
Our handwriting reflects a lot about us. It will be awesome if you use good presentation and cursive hand writing
Make a column on the right hand side, if you need to do any rough work

Leave two lines where you finished yesterday’s work and draw a horizontal line
Write today's date on the line after that. We need to save paper. Write the SDG – 12 : Responsible Consumption and Production. Remember we contemplated on SDG-1 in yesterday’s class ? Let us be responsible global citizens. One good thing that Coronovirus is teaching us! That is be responsible global citizens.
Pending Queries from yesterday (if any).......
Please write the learning outcomes as mentioned below
I will be able to : Summarize Euclid's Division LemmaTo find HCF of two numbers using Euclid's division Algorithm 6.Click on the following link to recall What is Euclid's Division Lemma

https://youtu.be/mjE27hamFH4

Have you been through the above link ?

If yes ,then please answer the following questions as Class work right now ?

Q 1) Fill in the blanks

A 1) 30 = 4 x _____ + 2

Q 2) If a and b are two positive integers and a ÷ b, then

A 2 a = ____x q + r, 0 ≤ ______< b .

   7.  Write Euclid's Division Lemma in your register
Given two positive integers 'a' and 'b', there exists a unique pair of integers q and r such that       a = b x q + r, 0 ≤ r < b . NOTE:-
Here , we recall 'a' as dividend , 'b' as divisor ,'q' as quotient and ' r' as remainder Dividend = Divisor x Quotient + Remainder.
  Click on the following link to recall What is  Euclid's Division Algorithm    Euclids-division-algorithm Ex 1.1   Q 1 i)

Hence you should be able to attempt NCERT Ex. 1.1 (Q1. ii) and iii) are for home work. Q3.An army contingment of 616 members is to march behind an army band of 32 member in a parade . The two groups are to march in the same number of columns .What is the maximum number of coumns in which they can march?

Click the link attached below.

Difference between Euclid's Lemma and Algorithm

Click the Link to view the word problem

word problem

Now attempt this Question
Q1.. Two tankers contains 850 litres and 680 litres of petrol respectively.find the maximum capacity of a container which can measure the petrol ?
(Judicious use of natural resources should be our goal.....SDG 12-Responsible Consumption and Production )

click on the link to know more about SDG'S

17 sustainable Development goals

I will begin tomorrow’s class with any queries from today's topic and will solve Q 2,4 and 5 of Ex 1.1

That should be all for today !

Good morning and thank you boys !

Take a good care of yourself

See you tomorrow for the next class !