Math

• Measurement is used in various aspects of daily life.
• There are appropriate devices or instruments for measuring objects.
• The concept of measurement dates back to the ancient civilizations of Egypt, Babylonia, and China.
• Through trade and conquest, systems of measurements spread to many parts of the world.
• The ancient system of measurement makes use of body parts.
• Digit - the subdivision of a cubit, supposed to be a finger's breadth
• Small pan/large pan - the distance covered with the palms of the hands
• The basic unit used by the early Babyloniana was: mina - the earliest known unit of weight 


  A standard unit is a fixed, generally accepted, and established reference for measuring physical characteristics of objects. Measurement is the process of comparing an attribute of an object to a standard unit
• The basic units of the early Greek were: finger - the basic unit of length.

  olympic cubit - the equivalent of twentyfour fingers.

  talent - the basic unit of weight metrites - the basic unit of liquid measure
• The Chinese system of measurement employed parts of the body, such as the distance from the pulse to the base of the thumb.

  Shih/Tan - the basic unit of weight

  Chih/Chang - the basic unit of length
• The standard measure for grain includes its weight and its pitch when struck.
• quart - the basic unit of dry measure similar to the modern English quart
• The inclusion of the acoustic dimension in the Chinese system of measurement is its unique characteristic.
• The Chinese measure also employs the decimal notation.
• Roman mile was the unit of measure for distance with varying number of feet and yards.
• The medieval system of measurement was an offshoot of the Roman system which was a mixture of the Babylonian, the Egyptian, and the Chinese system.
• Pinte (pint) was the basic unit of liquid measure.
• Libra was the medieval unit of weight.
• The inch is the length of Barley corns.
• The foot is the length equivalent to 12 inches.
• The yard is the standard unit of length equal to 3 feet.
• The perch (rod) is equivalent to 5.5 yards.
• The acre is 4 rods wide by 40 rods long.
• The furlong is a standardized one-eighth of a mile.
• The English pound is a troy weight.
• Avoirdupois weights are used for goods that have to be weighed.
• The stone is a multiple of the English pound.
• The Metric System of Measurement was developed in France as a result of the French Revolution.
• The International System of Units, universally abbreviated as SI, is the modern metric system.
• The International System of Units was established in October 1960 during the 11th General Conference on Weights and Measures in Paris.
• Using centimeter as a unit, this pencil is 1 11- centimeters long.
• A centimeter consists of two parts: a number and a unit of measure.
• While the number of objects should be exact, measurements are never exact.
• The number of objects can be exact, for example, 3 or 4 books but not between 3 and 4 books.
• A measurement can be approximate, for example, 148.4-cm tall person which means the person can be 148 cm tall or any number near it.
• The common units for measuring length include inches, feet, yard, mile, millimeters, centimeters, meters, and kilometers.
• caliper Wandhal To measure very small lengths such as thickness of a piece of paper micrometer Defective measuring devices, careless use of measuring instro and inaccurate reading of the measure indicated on the instrume some possible sources of error. U ot m cm mm
• length of a nail is 7cm
• The length of an object is the number of units from one end of the object to the other end.
• The meter (m) is the basic unit of length in the metric system.