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Use the dynamic worksheet to practice simplifying expressions with fractional exponents, rewriting them as radicals.

This video explains how to calculate the perimeter of various 2D shapes.

Three activities which illustrate the law of exponents.

This is a simple video which describes how indices problems are solved using simplified laws.

Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.

This is a short tutorial on how to define and measure the perimeter of shapes

By the end of this course you will be able to:

1. Define the terms perimeter and area
2. Find the perimeter of any polygon
3. Find the perimeter and area of a trapezium, parallelogram, rectangle and square
4. Find the area of a triangle
5. Find the perimeter and area of a circle

Online problems where the student is required to simplify the expression using the product property of exponents.

An activity explaining the properties of exponents.