TT PA 40-43

Be safe
Be ready
Be kind
Be respectful
Be responsible

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5 star students

​Measuring 2-D (flat) surfaces

Area of a square or rectangle: length*width

Useful formulas:

You can think of the area of flat surfaces as how many smaller squares fit into them.

What is the area of this square?

What if length and width are different units?

1. Convert your numbers so that BOTH measures are in the same units.

2. Solve as usual.

Square inches, square feet, square yards, square miles, and acres are all used to measure area in Imperial or US Standard.

​The procedure is the same, but the units are different.

When converting in metric, all you need to do is move the decimal point left or right. It's easier than imperial.

For square units (area) you multiply or divide by 100 instead of ten when down or up the ladder.

1 sq km = 1,000,000 sq m

Volumes are a calculation of length, width and height.

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Volume

​Calculate the volume of this shape:

​Volume is the measure of how many little cubes will fit into the shape.

Remember to choose BIG units (miles, acres, km, etc. ) for big objects.

1. Chapter 6, Lessons 40-43