With a contrasting geography and a rich historical past, Peru is a country with more than 1 million square kilometers to travel and discover. Here is a selection of the most interesting and famous places in Peru a tourist cannot miss....

In this lesson plan site, students will learn how to use a metric ruler to measure length, accurately read and record measurements taken in centimeters and millimeters, and collect and analyze data using a stem and leaf.

Practice converting English units of measurement to metric units using this tool.

The different units used to measure metric length are described, with comparisons to real world objects. A wonderful number line also shows the relative sizes of things all the way from a quark to the universe in powers of ten.

This site, which is provided for by Science Made Simple, allows you to enter an amount into an area conversion calculator.

Practice estimating the length of real life objects using metric units. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice converting a metric measure of length to a smaller unit. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.