All posts by lspady

#74 Fibonacci Fun

Fibonacci

The Fibonacci Sequence

1, 1, 2, 3, 5, 8, 13, 21, 34, 55…

The Fibonacci Sequence is a simple sequence of numbers that anyone can learn!  This Math Minute has you exploring some Fibonacci Fun.

How can I spend my math minutes?
  • The list above includes the first 10 terms of Fibonacci’s Sequence.  Write out the next 10, 20 (or more) terms by adding the 2 previous numbers (i.e. the next Fibonacci number is 34 + 55 which is 89).  Yes, I’m aware you can just find a website that lists out the Fibonacci numbers so all you have to do is copy them down, but instead of copying them down, practice your basic math skills and DO the math yourself!
  • “Too much of the mathematics we learn in school is not effectively motivated.” ~Mathemagician Arthur Benjamin Watch his TED Video about the Magic of Fibonacci Numbers at https://youtu.be/SjSHVDfXHQ4
  • Watch this Numberphile video about Random Fibonacci Numbers.  Then, try the activity he explains in the video using a coin.  My sons Toby and Trevor and I recorded ourselves doing the activity here: https://youtu.be/51K6TKbUGXk
  • Read about the Fibonacci Sequence at Math is Fun and leave a comment about something new you learned.

Image of Golden Spiral: “Fibonacci” by Sam Felder is licensed under CC BY-SA 2.0

Virginia Frank Memorial Writing Contest

The Friends of Omaha Public Library are currently accepting submissions for the Virginia Frank Memorial Writing Contest.  The contest is for students in 5-8th grade.  First prize in each grade is $100.
Here is a link to the contest   https://omahalibrary.org/virginia-frank-memorial-writing-contest/

The Virginia Frank Memorial Writing contest is held each year in the spring to recognize the creative writing talent of area students. This contest, sponsored by the Friends of Omaha Public Library, recognizes the top three winners from each grade. Each winner receives a cash prize and certificate, is recognized in a ceremony at the library, and has their story published on the library website. The school libraries of each winning student are also recognized with a matching cash prize.

Eligibility Requirements

Stories must be submitted with an entry form to be considered. Complete all fields either online or on a printed entry form and submit with your story.
Students must be in 5th to 8th grade and live in Douglas or Sarpy counties.
Students may be enrolled in public, private, parochial or home school.
Stories must be typed and no longer than 750 words.
Entries must be original fiction featuring a character from a book you have enjoyed and read on your own. Identify the book and author from which your character originated in the title or subtitle of your story.
Only one entry per contestant will be accepted.
The decision of the judges is final.
All entries become the property of Friends of Omaha Public Library (FOPL) and may be featured by Omaha Public Library on its website or social media.
Deadline for entries is February 28, 2020.
Prizes

First ($100), second ($75) and third place ($50)
Prizes will be awarded to the top three winners from each grade.
The school library of the winning students will be recognized with matching cash prizes.
Read the winning stories from the 2019 Virginia Frank Memorial Writing Contest

About Virginia Frank

The Virginia Frank Memorial Writing Contest began in 2003 and is named in honor of a longtime Friends of Omaha Public Library volunteer. Virginia Frank was a Central High and UNO graduate. She acquired a master’s degree from Brown University and taught English literature and creative writing at UNO for many years. Her passion for students and young people inspired everyone around her, and her enthusiasm encouraged many students to explore their creative writing talents. Frank volunteered thousands of hours with the Friends of OPL to help ensuring a bright future for our public libraries.

Nebraska Robotics Expo 2020

CEENBoT Robotics Showcase 2020 logo

Nebraska Robotics Expo

Mark your calendars for the following Saturdays at Westside Middle School from 2:00-4:00 pm.

  • January 11, 18, 25
  • February 01, 08, 15
During these Saturday sessions, your child can learn about the Robotics Expo and the various competitions:

Click here to find out more!

#73 Codes

01000011 01101111 01100100 01100101 01110011 00100000 01100001 01110010 01100101 00100000 01000011 01101111 01101111 01101100 00100001

in English, Codes are Cool!

Do you have your own secret code that you use with your friends?  Do you like writing notes to people?  Do you like to write in a diary?  Do you like solving puzzles and finding patterns?  If you answered yes to any of these questions, you might want to check out this Math Minute!

  1. Go to https://www.rapidtables.com/convert/number/ascii-to-binary.html and type in a sentence in English.  Then tap the convert button to translate your message to binary.
  2. Learn about the Pigpen cipher (also known as masonic cipher, Freemason’s cipher, Napoleon cipher, and tic-tac-toe cipher) by watching this video: https://youtu.be/s5XRTcLYy40 Then, write a message using what you learned.
  3. Watch this video about the Enigma Machine at Numberphile: https://youtu.be/G2_Q9FoD-oQ Post a comment about something new you learned.
  4. Learn about the Caesar Cipher by watching this video: https://youtu.be/o6TPx1Co_wg Then create a message for someone else to figure out.  Be sure to include the shift number!
  5. Find out how a code was used to catch someone red-handed! https://www.pcmag.com/news/369045/genius-we-caught-google-red-handed-stealing-lyrics-data

Battle of the Books 2020

Registration has begun for the Battle of the Books 2020!

Online registration runs through Friday, October 25.
Battle of the Books celebrates reading and fosters team spirit, and is open to all Westside District 4th through 6th graders.  We are hoping to have all 10 elementary schools represented at this year’s battle on Saturday, March 21, 2020 at the Westside Middle School.
For more details, please visit: https://sites.google.com/view/westsidebotb

#72: Palindromes

Guess what!  The 2019-2020 school year contains 21 VERY SPECIAL days!  Ten of those dates are listed in the picture above.  Can you figure out the additional 11 days that will occur in 2020?

How can you spend your Math Minutes?

Make a Water Glass Xylophone

Musical glasses are a fun way to combine art, math, music and science.

Gather the materials you need:

8 identical water glasses

water

a set of measuring cups

food coloring (optional)

1 plastic spoon

1 sheet of paper

Tape

pen/pencil

As you create this experiment. Take pictures of all of your steps.

Steps:

  1. Use a measuring cup to fill each of the glasses with the correct amount of water. Use the image below as a guide.
  2. For fun, you can add a drop of food coloring to your glasses or two drops to make green, orange, or purple.

3.  Label your glasses.  Use the image below as a guide.

4. With a plastic spoon, gently tap each glass and listen for the sound it makes.

5. Notice which glass makes a lower sound and a higher sound.

6. Try playing these simple songs or create your own.

7. What else can you do with musical water glasses? Respond to this post with your ideas.

 

The SCIENCE behind the music

The science of sound is all about vibrations. When you hit the bottle with the spoon, the glass vibrates, and it’s these vibrations that ultimately make the sound. You discovered that tapping an empty bottle produced a higher-pitched sound than tapping a bottle full of water did. Adding water to the bottle dampens the vibrations created by striking the glass with a spoon. The less water in the bottle, the faster the glass vibrates and the higher the pitch. The more water you add to the bottle, the slower the glass vibrates, creating a lower pitch.

 

 

Activity adapted from Musical Water Glasses at https://www.connectionsacademy.com/resources/instructographics/music-water-glasses and https://www.stevespanglerscience.com/lab/experiments/pop-bottle-sounds/

 

 

#71: 2020 Olympic Medals

80,000 tons of mobile phones and small electronic devices around Japan, which will be used in the crafting of every gold, silver and bronze Olympic and Paralympic medal awarded to athletes at the 2020 Olympic Games.
How can you spend your Math Minutes?

Image Source: https://www.pdclipart.org/

Tech Checkout Library

Tech Resources

Below is a link to a list of technology housed at the EY office.  Make sure to select Tech at the bottom of the spreadsheet.

The spreadsheet contains the title of the tech available for checkout.  If/when you decide you would like to check out something, please e-mail Jenny Henningsen, who will then put your name in the “checked-out by” section of the spreadsheet.

Click here for a list of the tech available for checkout