Are Pizzas Really Round?

NO! So if you are teaching or modeling fractions, stop using pizzas.

Pizzas are not round; the pieces are not equal.

Dad opens the pizza box and Snappy counts the pieces, one, two, three, … eight pieces. See mom, this piece is one/eighth of the pizza. NO, it is not! It is one of eight, not 1/8. A fraction is used to represent equal portions/parts of the whole thing. Either a set/area.

Fractions are foundational to many advanced areas of mathematics and science.

Fractions or decimals? Which of these is more precise? 22/7 or 3.14… 1/3 or 0.333…