e Day Math Activities
Check out these creative e Day Math Activities for celebrating e Day on February 7th with your math students!
What is e Day?
The mathematical constant e is known as Euler’s Number. Since the decimal approximation of e is 2.71828…, mathematicians celebrate e Day on February 7th.
This mathematical holiday is often only celebrated in upper-level math classes at the high school level since students are usually introduced to the constant e for the first time in Algebra 2 or Precalculus courses.
Ideas for Celebrating e Day
Digits of e Hidden Number Puzzle
This fun hidden number puzzle involves finding the first 11 digits of e in a grid of numbers. It would be a perfect addition to your e Day festivities!
e Hidoku Puzzles
These free printable e-shaped hidoku puzzles are the perfect logic puzzles for e Day or your next math club meeting! Give Euler’s constant the attention it deserves!
Euler’s Constant No Four in a Row Puzzles
Can you complete the e shaped grids so that there are never four of the same symbol in a row in these e Symbol No Four in a Row Logic Puzzles? Perfect for e Day!
e Day Hidden Word Puzzle
Looking for a fun word puzzle for e Day? Search through the grid of letters to find a path that spells “Happy e Day.”
e Day Area Division Puzzles
Can you divide the grids into subsections so that each section contains the letters in the phrase “e DAY?” This logic puzzle is perfect for e Day on February 7th!
e Day Latin Square Puzzles
Can you complete each grid so that the letters in the phrase “e Day” appear only once in each row and column? This logic puzzle is perfect for e Day (February 7th)!
e Day Word Search Puzzle
Challenge your students to find these words related to the constant e in this fun printable word search puzzle for e Day.
e Day Nonogram Puzzle
Bring some puzzling fun to e Day (February 7th) with this free printable nonogram puzzle.
e Day Photo Opportunity
Coach Lombo suggests celebrating e Day by having students work together to use their bodies to form a large letter e.
e Day Math Lesson Ideas from Karen Campe
Karen Campe wrote an excellent blog post on “Exploring e” that features several math lesson ideas for introducing students to Euler’s constant.
e Day Food Celebration
If your students want to have a class party for e Day, Amy McNabb suggests having them each bring a food that starts with the letter e.
How fun!
E Brainteaser Puzzle
Can you arrange the letters C, E, and L to form a single letter E?
Puzzle Solutions
Puzzle solutions are available on a password-protected solution page. I do not openly post the puzzle answer keys because one of my goals as a resource creator is to craft learning experiences for students that are non-google-able. I want teachers to be able to use these puzzles in their classrooms without the solutions being found easily on the Internet.
Please email me at sarah@mathequalslove.net for the password to the answer key database featuring all of my printable puzzles and math worksheets. I frequently have students emailing me for the answer key, so please specify in your email what school you teach at and what subjects you teach. If you do not provide these details, I will not be able to send you the password.
Not a teacher? Go ahead and send me an email as well. Just let me know what you are using the puzzles for. I am continually in awe of how many people are using these puzzles with scouting groups, with senior adults battling dementia, or as fun activities in their workplace. Just give me enough details so I know you are not a student looking for answers to the puzzle that was assigned as their homework!
