In this which side of the line numbers puzzle, students must determine if the numbers 9 and 10 go above or below the line.
I ran across this puzzle in The Big Book of Mind-Bending Puzzles by Terry Stickels and decided it would make a great puzzle to put up in my classroom.
I typed up the numbers from 1 to 10 and printed them on colored squares. I placed a magnet on the back of each square so I could hang it on my dry erase board, but you could also use tape to attach these to whatever surface you are using.
I use ceramic disc magnets with all of my puzzles. I buy the magnets in bulk from Amazon. They are reasonably priced and strong enough to hold things up without them sliding down the dry erase board. I’ve used almost 400 of these magnets in the past year or so.
If you don’t want to cut out individual squares for each number, I also created another version of the instructions that includes the number diagram on the instruction page.
I also created another version of the puzzle that prints three to a page so you can hand students a small version of the puzzle to solve.
It’s been very interesting to listen to my students share their theories this week about whether 9 and 10 go above or below the line.
Free Download of Which Side of the Line Numbers Puzzle
Want more puzzles to engage your students? Check out my puzzles page!
I intentionally do not make answers to the printable math puzzles I share on my blog available online because I strive to provide learning experiences for my students that are non-google-able. I would like other teachers to be able to use these puzzles in their classrooms as well without the solutions being easily found on the Internet.
However, I do recognize that us teachers are busy people and sometimes need to quickly reference an answer key to see if a student has solved a puzzle correctly or to see if they have interpreted the instructions properly.
If you are a teacher who is using these puzzles in your classroom, please send me an email at email@example.com with information about what you teach and where you teach. I will be happy to forward an answer key to you.