## Why is homework given to students?

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.

### Who was 0?

“Zero and its operation are first defined by [Hindu astronomer and mathematician] Brahmagupta in 628,” said Gobets. He developed a symbol for zero: a dot underneath numbers. “But he, too, does not claim to have invented zero, which presumably must have been around for some time,” Gobets added.

**What was used before zero?**

Some of the first known zero symbols appear in Babylonian clay tablets of between 400 and 300 B.C.; there the zero was used to clarify the symbols for large numbers. Brahmagupta was the first to write down the rules for arithmetic with zeros.

**What if zero was not invented?**

Without zero, modern electronics wouldn’t exist. Without zero, there’s no calculus, which means no modern engineering or automation. Without zero, much of our modern world literally falls apart.