Nonstandard measures and Customary Length

An indirect measure is the measurement of an object through the known measure of another object

For Example, if the height of a block is 6 paperclips and 12 blocks are stacked to form a wall, the total height of the stack is 6 x 12 = 72 paperclips

When a tool or a benchmark is used to take measurement of an object directly, it is a direct measure

For Example, the height of a block is 6 paperclips

An inch is divided into 8 parts, the smallest division being 1/8 inches

Customary units of length are: inch (in), foot (ft), yard (yd) and mile (mi)

The benchmark for an inch is a paperclip; for a foot is the length of a 3-ring binder

The benchmark for a yard is the length of a large baseball bat; for a mile, the benchmark is the distance 4 times around 1/4-mile track

1 foot = 12 inches

1 yard = 3 feet = 36 inches

1 mile = 5280 ft; 1 mile = 1760 yd

To convert a smaller unit to a larger unit, divide the smaller unit by the conversion factor

To convert a larger unit to a smaller unit, multiply the larger unit with the conversion factor