CLASS 6TH DAY 8
INTRODUCTION
Ratio and Proportion
In Maths, ratio and proportion are one of the important ideas. The concept of ratio defines us to compare two quantities while the proportion is an equation which reveals that two ratios are equal. Hence, it’s simple to calculate the ratio of the given proportion.
Suppose a and b are two completely different numbers or integers, then the ratio of those two integers will be represented as a/b or a:b. Whereas, the proportion, on the other hand, is the relation between two ratios such as a:b::c:d or a/b = c/d, where a,b,c and d are integers
In the video animation, we have seen that how the mother applied ratio to first make the orange drink for the boy, later when the girl asked for a glass of drink, mother applied proportion to similarly make another glass for her daughter. Ratio and Proportion unknowingly play a vital role in our day to day happenings.
Question: Out of 30 students in a class, 6 like football, 12 like cricket and remaining like tennis. Find the ratio of
(a) The number of students liking football to the number of students liking tennis.
(b) The number of students liking cricket to the total number of students.
Solutions: Given
Number of students who like football = 6
Number of students who like cricket = 12
Number of students who like tennis = 30 – 6 – 12 = 12
(a) The ratio of number of students liking football to the number of students liking tennis = 6 / 12 = 1 / 2
(b) The ratio of number of students liking cricket to the total number of = 12 / 30 = 2 / 5
Activity: Similarly try making orange drink for every family member just by knowing the ratio of orange powder and water for one glass.
Here is a small quiz to test your understanding. Try to attempt all the questions and get the highest marks possible.👇 👇
How Asia Got Its Name?
Asia is Earth’s largest and most populous continent, located primarily in the Eastern and Northern Hemispheres. It shares the continental landmass of Eurasia with the continent of Europe and the continental landmass of Afro-Eurasia with both Europe and Africa. Asia covers an area of 44,579,000 square kilometres (17,212,000 sq mi), about 30% of Earth’s total land area and 8.7% of the Earth’s total surface area. The continent, which has long been home to the majority of the human population,was the site of many of the first civilizations.
Asia is notable for not only its overall large size and population, but also dense and large settlements, as well as vast barely populated regions. Its 4.5 billion people (as of June 2019) constitute roughly 60% of the world’s population.
But do you know how it got its name lets find out.👇 👇
What happens when we divide a number by zero?
We have always assumed that any number divided by zero is not defined. Here, through this video we would like students to know why it is so. Everything in mathematics has a relational understanding and holds relevance. Why tan 90 is not defined, what’s the real difference between infinity and not defined. What actually happens when we multiply any two numbers. Why 2 x 5 = 5 x 2 but 2 / 5 is not equal to 5 / 2.
Ramanujan Constant
Ramanujan was one of the most brilliant Indian mathematician .he could play with numbers easily but do you know there is a number which he found really interesting lets find out.👇 👇
1729 was the smallest number that could be expressed by the sum of two cubes in two different ways. This story is very famous among mathematicians. 1729 is sometimes called the “Hardy-Ramanujan number”
Coronavirus and the graph
Stay informed. Stay cautious, but not scared. Listen to scientists and public health officials and follow their guidance. By protecting yourself, you’re protecting the most vulnerable among us.
JIVAN GYAN
Today we will learn about 5-6 Yoga poses which will help boost your memory. Practice these daily and that will help you brush up your memory power and it also gives power to your brain. Click on learn more to watch the video explaining the same.
