Drop knowledge, not bombs! Show your commitment to improving the world through mastery of mathematics with this spoof of war propaganda and a celebration of everyone’s favorite multicolored pen.

This cute funny odd and even numbers design is the perfect gift idea for the math teacher, professor, tutor or student. Text says: YOU KNOW WHAT SEEMS ODD TO ME? NUMBERS
THAT AREN'T DIVISIBLE BY 2

Drop knowledge, not bombs! Show your commitment to improving the world through mastery of mathematics with this spoof of war propaganda and a celebration of everyone’s favorite multicolored pen.

Numbers - such as monetary figures or statistics - without context are dangerous and often used to mislead and/or sensationalize. This is a problem both in politics and mainstream media, and science reporting. Spread awareness!

Math rocks with three happy rocks dancing with numbers is a funny gift design for mathematicians, math school teachers and students who love to work with numbers.

This classic math limerick is a perfect gift for any math lover with a sense of humor! The text reads: "A dozen, a gross, and a score plus three times the square root of four divided by seven plus five times eleven is nine squared and not a bit more."