solve using the matrix method. class ten, optional mathematics

Solve the given equation using the matrix method.

a. x+y = 5

x-y= 1 ( 2,3)

b) 2x + 3y = 7

X+ y = 3 (2,1) 

c) x + y = 9

2x - y = 3 ( 4,5) 

Turmeric powder and KP OLI

I had read one story about a professor of philosophy in Paris. One day, he pronounced in college that he was the wisest person in the world. His students challenged him to prove his proclamation. He was well prepared for this situation, so he took out his map of the world and asked which country was the best in the world. All students were French so obviously, their answer was “France”.

‘Which is the best city in France?” Still, he continued,

“Paris”, students replied in unison.

“Which college is best in Paris?”, again the Professor asked

“Our college”, students replied.

“And I’m the principal of this college. I'm the principal of the best college of the best city of the best country in the world. So, I'm the wisest person in the world”, Principal gave his conclusion.

Students knew, he was not right, but the professor used the psychology of all students cleverly. 

Because the professor knew, everyone thinks, their country, language, culture as superior to others.

Every people think about their country, their culture, or other identities best because they want to prove themselves best. Dear prime minister,  I don’t know whether you intend to use pseudoscience or you are a victim of such dogma, it is better to realize, Nepal is a beautiful country, not the most beautiful country. We have a good climatic condition, but so do some other countries too. And turmeric powder is good for health but not a panacea.

Public School versus Private School. A comparison

Public School		Private School
Government	Funded by	Private sector
Appointed for lifetime	Teachers	Contract Basis. Contract renewed yearly
Periodic training	Training	Occasionally
yes	Chance of career development of teachers	no
Better	Salary of teacher	Feeble except in few school
Old and traditional	Teaching methodology	Modern as far as possible
partial	Use of modern technology	good
no	accountability	yes
Very poor	result	extraordinary
Just for formality	Extracurricular activities	Competitive and effective
Good salary, status equivalent to civil service	What teacher want	To learn new innovative ideas and enhance efficiency
nothing	What teacher fear	Loosingyou job

If you have more, please post in comment box

Some android application which can teach you science better than your teacher

We are inside our home since two month and already  started feeling bored because of such a long break. Why not utilize this time, to explore something about our nature and science, which is   rarely discussed in classroom, but can broaden your knowledge about science. Here I am going to discuss two android applications which are really useful to understand some about astronomy.

Can you recognize mars or jupiter in sky? Or have you ever seen or noticed Ursa Major? If you want to explore night sky, Sky Map can be a good choice. If you have an android device with magnetic sensor, it will work perfectly for you. Just, point your device toward any direction and it will identify that direction and  recreate the view of that particular direction in the device and detect every heavenly object, in that particular direction. Even with naked eye,  some planets like venus, mars,jupiter and saturn can be observed if  sky is clear. It has search option, which can be used to find direction of any particular heavenly object. Also there is time travel option, which will give idea, about the view of sky during different times. For example, currently  jupiter and saturn can not be seen during evening but can be seen easily in morning. Sky map will tell everything about it, so watching sky will be more fun.

Also, there are some paid apps such as stellerium and other free apps also, but I prefer Sky map because of its small size and great accuracy.








Another good application is Gravity Simulator which is useful to know about trajectory of planets and other heavenly object in presence of some other objects such as sun. Also it will help to learn about speed during revolution around the sun and also helps to know about how planets revolve in elliptical obit. Also, some objects can be created to observe the effect of gravity of other massive objects and helps to know, why jupiter and saturn are boon to the life on earth. There are some other applications too, which are also useful as this application, and you will enjoy the simulation and understand gravity more clearly.


About similar application in ios, I will write in another blog post. Also there are some useful apps which helps to understand mathematics more clearly. I will write about them very soon.

Model of education system after COVID19 crisis

All schools in Nepal are closed, after government imposed lockdown, because of the Covid19 crisis. Many schools have already started online teaching, but hardly fifty percent students are being able to join online classes, because of many technical issues.  Even, those are taking part actively in online class are not satisfied, with the online course. In other hand, there is less certainty about resumption of the school, as schools are the most vulnerable place for such pandemic. So, there is high risk of losing an entire academic year, if the problem persists for long time.

 If we had implemented all the plan and policies made by government, impact of such situation could have been minimized but we missed it very badly. But,we have to learn and prepare  for another worst case scenario. I have presented few ideas, about how we can remodel out entire education system, so that teaching learning activities run smoothly even in such pandemic.

Remodel the curriculum

Our curriculum is either outdated or too vague. In the era of modern technologies, language teacher are still teaching how too write letter to their father.Students of class eight are given task of writing analytical answer of some given topic, which is generally considered beyond their capabilities. In other hand, course is made too vague and impractical. Curriculum is never designed on the basis of the learning capabilities of students, rather it is being designed by the whim of some so called experts who are always ready to add everything they love  in school curriculum. Because of all these, school curriculum looks like a encyclopedia. And it is very difficult to teach encyclopedia, even during normal school hours,than how it will be possible to teach using virtual classrooms.

It is the right time to remodel curriculum, which should include only most necessary topics, with practical approach, so that it would be easier to run classes using virtual means also.

Practical should be more practical

Almost all subjects in school include some practical marks, but all students get full marks on  practical even if the theory marks is zero. No one bothers to  take practical exams, and even if there is practical exam, it is only for formality. If such practical learning was implemented effectively,  practical classes could have launched easily by using virtual methods also. As practical contains 25 percent of total curriculum, three month lock down could have been compensated by practical activities only. So, there could have been no hamper in teaching learning activities. So, concerned persons should think about conduction practical classes in real.

Teachers???

Teaching requires a well qualified as well as technologically adapted personals,  who are always ready to learn, but in Nepal, it is just opposite. Teacher who are teaching in government schools, are assured of their job despite of poor results, so they never want to get updated. Teacher of private schools, spend most of their time fighting with administrations, and never get time for creating innovative ideas. But, in upcoming days, teachers who can easily adapt to modern technologies and teaching methods will be required to face such crisis.

Technology

Even if we have everything, despite of technology, it is almost impossible to face such pandemic without proper utilization of technology. So government and concerned authorities must think about developing technologies, for the inside and outside of classroom.