• Skip to main content
  • Skip to footer

DrTechniko

Train Young Innovators Anywhere Anytime

  • Free Stories & Activities
  • Online Courses
  • Coaching & Workshops
  • Bio
  • Blog

algorithms

July 9, 2011 By drtechniko

StoRy 4 – Discussion

Many times I’ve heard people ask first graders “what is your favorite class in school”. The child is forced to choose one subject: sports, math, language etc. That trend continues throughout school and students tend to become one-dimensional. Too much focus too early ends up hurting our problem solving skills, because we lose the opportunity to build extra thinking tools and models that can be composed together.

StoRy 4 illustrates that taking a step back, thinking outside the box and composing abilities can solve a problem even if it appears to be unsolvable. Not until the Number 4 and the Letter R realize they can combine their spelling and counting abilities can they figure out that R is the fourth letter in the word FOUR.

The story also introduces the array, a data structure that appears everywhere in science (especially in computer science). An array, is basically a list of items that can be identified by an index/position. In our story, the array is an array of characters (F-O-U-R), also known as a word.

Here are some comprehension questions you can ask your children:

Q: What is the 4th letter of the word LETTER? What’s the position of the letter B in the word NUMBER?
A: T. 4.

Q: What’s more useful: Counting or Spelling?
A: Both are equally useful.

Q: Why was the Number 4 smiling at the end?
A: Because at the end, FOUR had 4 boxes and R only 1 inside the crossword puzzle. Moreover, it was all because the Letter R jumped into the box thinking that this would make it win the argument against the Number 4. If the Letter R hadn’t jumped into the box, then the Number 4 would not appear in the crossword puzzle at all.

I hope we learned something useful today,
Dr. Techniko

Filed Under: discussion, science Tagged With: algorithms, children, education, first grade, preschool, problem solving, storytelling, teaching, technology

December 6, 2010 By drtechniko

Story 2 – Discussion

The story of the Dragon’s Treasure Makeover aims to teach both a problem-solving skill and a technical skill.

First, the problem-solving skill is “try to understand the nature of a problem before you attempt a solution”. Imagine your printer is not working and you say “It worked fine yesterday. What happened? It broke. I’ll call support,” when in reality someone by mistake pulled the printer’s plug.   In the story, all three wizards use the Spellopedia Magica, but only Thinkalot picks a useful spell out of the book. That’s because he asked questions in order to understand the true nature of the Dragon’s problem. Understanding the nature of a problem is most of the time harder than coming up with a solution. It’s a skill that takes time to acquire, but it’s invaluable. If your children are stuck on a problem you can teach them by saying:

“Understand the problem and you ‘re more than half way towards the solution.”

Second, the technical skill is “if you organize things based on an identifier then it’s faster to search through them”. In this information-loaded age, information management is a great skill to acquire, so this story will provide a good discussion framework for you and your children on this topic.

I’d be interested to hear your opinion or reactions of your children on these topics.

Here are some comprehension questions you might want to ask:

1. If you were a Dragon which wizard would you hire and why?
(Thinkalot because he would try to understand my problem before he cast a spell.)

2. If you were the Dragon how would you change your ad in the Magic Network to make more clear what your problem was?
(“looking for wizard to help with search of treasure. I would like to be able to find any item in my treasure in about one day. I don’t want to lose any of my treasure” etc. The goal is to write a more specific ad.)

3. Thinkalot’s solution splits the treasure based on the first letter of each item. That splits the treasure in 26 piles. What if half of the treasure items started with “A”? It would take the Dragon half a month instead of a day to search for an item starting with “A”. So Thinkalot would be in trouble! Can you help Thinkalot find a better solution before the Dragon finds out?
(One way to solve this is to split the “A” pile into 26 piles using the second letter and so on. There are even better solutions if you are creative with your sorting criteria. I’d be interested to hear what your children can think of!)

I hope we learned something useful today,
Dr. Techniko

Filed Under: child, discussion Tagged With: algorithms, children, dragon, education, fantasy, fourth grade, hash function, kids, learning, research, science, sorting, teaching, technology, third grade, wizard

Footer

  • Facebook
  • Pinterest
  • Twitter

Copyright © 2025 DrTechniko · All Rights Reserved · Contact DrTechniko