amWRit

Note : This is just a technique to calculate and doesn’t explain ‘WHAT is valency and WHY is it so’. I have tried the technique with just first 20 elements, which are the must necessary ones according to our curriculum in Nepal. Please check the technique with more elements and let me know if it doesn’t work. Background : Valency is one important concept in chemistry. Being able to calculate it helps students with other chapters in chemistry like writing molecular formula, chemical reactions etc. So, I have been trying hard to make each student calculate valency. During my C2SATs class of grade 7 taken by grade 9 students, one of the student Gokul Lamichhane was using a different technique to teach calculation of valency. I asked him where he learnt it. He got it from an engineer relative. I found it amazing. It was as easy as counting chickens. However, he didn’t know how to give sign to the valency. Later, I dug into the technique. It was nothing new. It was always t...

When Scientists we all become "We will be doing some project work", I said. "Project work? What is that?" Suprised, confused, they exclaimed. "You will be making things, things that you want. It's a practical.", I said. "Practical?" They gave me suprised look. "But practical is what we always did at last. We did nothing but filled some lines in the Practical Book. " "Is it? We will be doing something new.", I said. "Make a balloon powered car, make a herbarium. You may make a booklet of plants. It needn't be fancy as a rocket. Make a doko , do some pottery. You might make a clay locket." "You might want to cook something nice and observe the science behind. Science is nothing, but what you apply and what you can find." "Cook? Whoa!" Sparkled eyes, excited mind. "Even cooking can be a project?" "We are starting new, we are starting fresh. ...