“Forecasting: Principles and Practice” book

Forecasting is needed for effective and efficient planning in business areas like inventory stocking and retail POS staffing. If you wish to have a comprehensive introduction to forecasting methods then you will find a free online textbook on this topic quite useful.

“Forecasting: Principles and Practice” is written by Rob J Hyndman and George Athanasopoulos from Monash University, Australia. It uses R to help readers learn how to forecast using R. R is an open source software, which is available for free for every operating system. It is a very useful tool not only for forecasting but for all statistical analysis.

The free online book is available at https://otexts.com/fpp2.

Happy Learning!

Disruption 2020: An Interview With Clayton M. Christensen on the website of MIT Sloan Management Review

Clayton Christensen, a Harvard Business School Professor, is best known for his theory of “disruptive innovation”. He recently passed away on 23rd Jan 2020. MIT Sloan Management Review published perhaps his last interview at https://sloanreview.mit.edu/article/an-interview-with-clayton-m-christensen.

This interview is taken by Karen Dillon, who is a former editor of Harvard Business Review (HBR). In this interview, Prof Clayton Christensen has shared how he had refined his thinking, what the future of innovation looked like through that lens, and what questions he was still wrestling with. An excellent read!

“Spurious Correlations” website

If you have studied statistics then you must be aware of the statement, “correlation does not imply causation”. This statement essentially means that we cannot legitimately deduce a cause-and-effect relationship between two variables solely on the basis of an observed association or correlation between them. If you need examples to support this statement then you should visit “Spurious Correlations” website at https://www.tylervigen.com/spurious-correlations.

Created by Tyler Vigen, this website documents examples of what are best described as spurious relationships. These are the relationships in which two events have no causal link, but still appear to due to either a coincidence or a third, confounding variable. The site shows the charts on which two variabes are plotted against the time line along with Pearson correlation (r) value. The site also allows us to discover new correlations. We tried the same and found the following correlations.

“Apple stock price on January 1 correlates” with “Worldwide commercial space launches” with r=0.945948
“Apple iPhone sales” correlates with “Per capita consumption of american cheese (US)” with r=0.999421
“UK: Military defense spending” correlates with “Number of people killed by hornets, wasps and bees in US” with r=0.999436

Needless to say, there are apparently no cause-and-effect relationship between these variables!

Happy Learning!

Maths is fun!

Do you think Math is fun? You will surely say yes, after visiting a site at https://www.mathsisfun.com!

The site promises to offer maths in an enjoyable and easy-to-learn manner. The content is available from KG to 12th standards as per the curriculum specified on the site. The site covers topics such as numbers, algebra, calculus, geometry, etc. Games, puzzles, worksheets are all used to make learning maths a real fun! Please check it out and share your feedback with us.

Happy Learning!

Vidyarjan Nugget # 35: Web Article on Cardinal Rules by Shiv Khera

Shiv Khera is a famous author of self-help books like “You can win”. On his website, he has offered 11 cardinal rules for leadership success, 11 cardinal rules for sales success, and 11 cardinal rules for business success. While one may argue against few rules, most of them are quite intuitive and sensible. You would like to read and follow these rules.

The link to this learning resource is http://bit.ly/vnl0035.

Happy Learning!

PS: You can choose to read Vidyarjan Nuggets online or with email subscription, or by joining a WhatsApp group.

Vidyarjan Nugget # 34: Bunker Roy’s TED Talk

Have you heard of a college which teaches mainly rural women to become solar engineers? Welcome to Barefoot College! Located in a village called Tilonia in Rajasthan. Barefoot College is a voluntary organization working in the fields of education, skill development, health, drinking water, women empowerment and electrification through solar power.

Know more about the Barefoot College from its founder, Bunker Roy by listening to his TED talk. It is a fascinating story of a social worker, who started with a mission of digging wells for five years, after completing his education from elite institutes viz. the Doon School and St. Stephen’s College, Delhi. His work has now benefited more than a million people from 96 countries. Listening to this talk would help you to know how out-of-box thinking can change lives!

The link to this learning resource is http://bit.ly/vnl0034.

Happy Learning!

PS: To receive Vidyarjan Nuggets in your email inbox, please visit http://www.vidyarjan.in/nuggets

Vidyarjan Nugget # 33: Knappily App

Do you just want to know the headlines or do you wish to have a well-rounded understanding of the news? There are many apps that provide headlines and at most some sketchy details about the news. But the Knappily app is different. It uses 5W1H framework (What, Why, When, Where, Who, and How) to give detailed answers to these six questions so that you can know more about the news.

As the app site says, this award-winning app is targeted towards the “knowledge-hungry time starved people” of today. It elaborates news from diverse topics such as politics, business, sports, technology, entertainment, etc. It publishes 3-4 Knapps each day. You can bookmark the interesting ones to read them later while being offline.

The link to this learning resource is http://bit.ly/vnl0033.

Happy Learning!

PS: To receive Vidyarjan Nuggets in your email inbox, please visit http://www.vidyarjan.in/nuggets

Vidyarjan Nugget # 32: Arvind Gupta’s TED talk

Can trash be used for learning? You will answer yes after watching this exciting TED talk by Padma Shree Arvind Gupta.

Padmshree Arvind Gupta is well-known for development of low-cost science teaching aids by using locally available material. He has set up a web site that provides instructions for making hundreds of improvised toys. These toys can be used for learning science in an engaging way. You can also see photos and videos (hosted on YouTube) to help you make these toys

In his 15-minute TED talk, Padma Shree Arvind Gupta has shared how trash can be turned into well-designed toys that kids can build themselves — while learning basic principles of science and design. After watching the TED talk, you will surely like to visit his web site at http://www.arvindguptatoys.com/

The link to this learning resource is http://bit.ly/vnl0032.

Happy Learning!

PS: To receive Vidyarjan Nuggets in your email inbox, please visit http://www.vidyarjan.in/nuggets

Vidyarjan Nugget # 31: Newsela website

Developing reading habit is not easy. However, help is available. If you wish to consciously develop reading skills in yourself or in your children, students or employees, then have a look at Newsela.

Newsela offers an instructional content platform that can be used by the teachers or instructors to create online classes for their students. It provides content at five reading levels along with comprehension quizzes and writing prompts. Teachers can see the student reading activity, quiz scores and answers to writing prompts. A free plan provides good enough functionality though a professional plan would be useful for professional teachers.

The link to this learning resource is http://bit.ly/vnl0031.

Happy Learning!

PS: To receive Vidyarjan Nuggets in your email inbox, please visit http://www.vidyarjan.in/nuggets