When introducing argumentative writing to students, describe it as a debate on paper--with both sides represented by facts, evidence, and relevant support. It's similar to the closing arguments at the end of a Law & Order episode. Consider showing clips of the closing arguments from various trial scenes.
An artist's impression of what the Mayak satellite could look like once in orbit. The proposed 'Mayak' satellite would have a huge pyramid-shaped reflector to make it easily visible in the night sky. A group of Russian engineers has raised over Â£17,000 to launch a reflective satellite which would be one of the brightest objects in the night sky.
Mayan Numbers : Mayan numerals were used in Central America, before 876 AD. The numerals consists of only three symbols, zero is represented as a shell shape, one as a dot and five as a bar.