Blog - K8 - Page 20

Did you know that the number of clues in a Sudoku puzzle should be at least 17 in order to have a unique solution? This is just one of the curiosities about number 17! It is also the 7th prime number, and it can be classified into several special classes of primes, some of which […]

Introduction There is a place in New Zealand that has the longest name for a place in the world. It is called Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu. This place has 85 letters in the name if you counted all of the letters. If you wanted to memorize this place’s name so that you could spell it easily, how would […]

What Are Perpendicular Lines? You are riding your bike down the street. You must be careful because you must cross another street. Another street intersects your street. These streets are perpendicular. Perpendicular lines are lines that intersect each other. In math, you may find that lines are either perpendicular or parallel. Below is a set […]

Introduction At a large corporation with thousands of employees, the company had to make arrangements with its employees who work around the world. There are 13 branches located in 4 different hemispheres around the world. They had to make sure that they did not have too many employees taking their week-long vacation break all at […]

PROBLEM: Regardless of family income or background, countless research studies show student academic performance is heavily tied to parent involvement. Schools and districts work hard to provide various equitable family engagement solutions to get families more involved. Unfortunately, across the board, most schools fail to provide equitable supplemental educational resources to families to support student […]

Introduction: Past high school data is being collected by a local city organization. The graduation years were divided among two clerks at the organization. The first clerk, Tommy, took the first 63 years, and Evelyn took the last 63 years. Each clerk had to spend time researching and gathering the data for each of those […]

Introduction With only 72 days until Christmas, Tony wants to start buying presents for his large family now. He has 24 people to buy presents for. Of course, every member wants something unique. It takes Tony quite a while to find the perfect present for each family member. Tony decides to spend a few days […]

Introduction In a car, a car racer knows that with every rev of the engine, the odometer needle climbs steadily 7 times. If he revs it seven times without the odometer needle falling at all, if that is all possible, how many times will he rev his engine to reach 35 miles per hour? Consider […]

Introduction Can you recite your best friend’s phone number? Probably not thanks to our cell phones where we just have to press our friend’s name and our cell phone instantly dials him. However, there was a time when we had to memorize phone numbers. Today, I can barely remember my own. Including the area code, […]

In English, being “at sixes and sevens” means to be confuse, uncertain, disorganized, or in disagreement with something. But not in this article! In what follows, we will study organized arguments that will clearly explain why 67 is a prime number, and we will all agree it is an interesting one. We will start recalling […]