## Why does school give us homework?

Homework teaches students to work independently and develop self-discipline. Homework encourages students to take initiative and responsibility for completing a task. Homework allows parents to have an active role in their child’s education and helps them to evaluate their child’s progress.

## How did the Mayans use zero?

The Mayan and other Mesoamerican cultures used a vigesimal number system based on base 20, (and, to some extent, base 5), probably originally developed from counting on fingers and toes. The numerals consisted of only three symbols: zero, represented as a shell shape; one, a dot; and five, a bar.

**Did the Mayans have 0?**

Six hundred years later and 12,000 miles from Babylon, the Mayans developed zero as a placeholder around A.D. 350 and used it to denote a placeholder in their elaborate calendar systems. Kaplan describes the Mayan invention of zero as the “most striking example of the zero being devised wholly from scratch.”

### How did Mayans use math?

Maya mathematics constituted the most sophisticated mathematical system ever developed in the Americas. The Maya counting system required only three symbols: a dot representing a value of one, a bar representing five, and a shell representing zero.