# Learning Measurement

Measurement exists in practically everything we do, from planning our daily schedule to baking a cake! In today’s world, we understand so many things through units of measurement. That’s why understanding the different forms and common units of measurement is such a crucial skill. Let’s learn about the different ways measurement can be used to understand the world around us!

## Measurement Resources

Measuring flour for a cake. Taking the temperature outside. Reading a ruler to calculate the length of a picture frame. We use units of measurement every single day! Understanding this crucial math skill begins by learning the metric and customary systems of measurement. Dive into any resource below to learn more.

## Metric system

A system of measurement that centers around grams, liters, and meters to measure weight, volume, and distance respectively. This is a decimal system and focuses on 10 and multiples of 10. It is commonly used around the world.

## Customary system

A system of measurement commonly used in the United States and US territories that uses customary units to make day-to-day measurements. It is based on the imperial and English units used in the 13 colonies.

## Measuring mass

Mass is the measurement of how much matter makes up a given object. Mass is often measured using a scale or graduated cylinder. Units used to measure mass include grams, kilograms, ounces, pounds, and tons.

## Measuring temperature

Temperature is the measurement of how hot or cold something is depending on the movement speed of its molecules or its kinetic energy. It is measured using a thermometer. Common units of measurement are Fahrenheit, Celsius, and Kelvin.

## Measuring capacity

Capacity is the measurement of how much an object can hold or contain before spilling over. You can use a graduated cylinder for this. Common units include milliliters, liters, fluid ounces, quarts, and gallons.

## Ruler measurements

Ruler measurements measure the length of an object or the distance between two points. It is measured using a ruler or straight edge labeled with units of measurement such as millimeters, centimeters, inches, and feet.

## Unit conversions

Unit conversion is changing a measurement from one unit to another while ensuring both numbers are equivalent. Common unit conversions include changing hours to minutes, Fahrenheit to Celsius, feet to miles, or pounds to ounces.

## How to tell the time

Time is told using the numbers on a digital clock or the hands on an analog clock. Time is told using hours, minutes, and seconds. Telling time is crucial to staying on track in your daily life!

## Elapsed time

Elapsed time is the time that exists between two specific points in time. It is determined using the start and end time of an event and is explained in terms of seconds, minutes, hours, days, weeks, months, and years.

## Metric system

A system of measurement that centers around grams, liters, and meters to measure weight, volume, and distance respectively. This is a decimal system and focuses on 10 and multiples of 10. It is commonly used around the world.

## Customary system

A system of measurement commonly used in the United States and US territories that uses customary units to make day-to-day measurements. It is based on the imperial and English units used in the 13 colonies.

## Measuring mass

Mass is the measurement of how much matter makes up a given object. Mass is often measured using a scale or graduated cylinder. Units used to measure mass include grams, kilograms, ounces, pounds, and tons.

## Measuring temperature

Temperature is the measurement of how hot or cold something is depending on the movement speed of its molecules or its kinetic energy. It is measured using a thermometer. Common units of measurement are Fahrenheit, Celsius, and Kelvin.

## Measuring capacity

Capacity is the measurement of how much an object can hold or contain before spilling over. You can use a graduated cylinder for this. Common units include milliliters, liters, fluid ounces, quarts, and gallons.

## Ruler measurements

Ruler measurements measure the length of an object or the distance between two points. It is measured using a ruler or straight edge labeled with units of measurement such as millimeters, centimeters, inches, and feet.

## Unit conversions

Unit conversion is changing a measurement from one unit to another while ensuring both numbers are equivalent. Common unit conversions include changing hours to minutes, Fahrenheit to Celsius, feet to miles, or pounds to ounces.

## How to tell time

Time is told using the numbers on a digital clock or the hands on an analog clock. Time is told using hours, minutes, and seconds. Telling time is crucial to staying on track in your daily life!

## Elapsed time

Elapsed time is the time that exists between two specific points in time. It is determined using the start and end time of an event and is explained in terms of seconds, minutes, hours, days, weeks, months, and years.

## Time conversions

Converting units of time is important if you want to know how many minutes are in an hour or days in a year. Multiply to convert large units of time to smaller ones. Divide to convert smaller units of time into larger ones.

## AM & PM

AM and PM stand for ante meridiem and post meridiem. Learn when to use AM versus PM to tell time.

## Time conversion

Time conversion involves taking a length of time and labeling it according to different yet equivalent time units. Common time unit conversions include changing minutes to hours, days to weeks, or minutes to seconds.

## AM & PM

AM and PM are labels put on time used to distinguish between the first half and second half of the day on 12-hour clocks. AM or PM differentiates 3 in the morning from 3 in the afternoon.

## All About Units of Measurement

### What is measurement?

A simple measurement definition is a characteristic of an object or event determined by comparing it to known quantities. When you measure something, you are comparing it to standardized units and discovering how it can be correctly labeled according to a system of measurement.

Before there was any standardized unit of measurement, people used all sorts of things to make measurements!

Ancient Egyptians and Babylonians used lengths of forearms, hands, and fingers to determine length. For much of human history, humans used sun and moon movements and constellations to determine time.

Irish farmers used their own unit, the “cow’s grass,” to measure the size of their fields. One cow’s grass was the size of land that could produce enough grass to support one cow.

You can imagine how disorganized those systems of measurement probably were! Today, we have three main standardized systems of measurement. Let’s take a look at them.

### What are the systems of measurement?

The main systems of measurement are the metric system, the customary system, and the SI system.

• The metric system is used in nearly every country. It centers around the number 10 and multiples of 10.
• The SI system is an official system of measurement used internationally in science, technology, and international commerce.
• The customary system is the common system of measurement in the United States and is based on the imperial system.

The imperial system was developed from the English system of measurement which was popular in medieval times up until 1826. The imperial system was replaced by the metric system but is used alongside the metric system in the UK today.

### What are the Units of Measurement?

Metric Units of Measurement

The metric system is a decimalized system developed in France in the 1790s. It uses the number 10 and its multiples.

The metric system was used to develop the SI (International System) units of measurement, an official system of units used to standardize science and commerce. SI base units borrow from the metric system but are not totally the same.

• The base SI units of measurement list is the second (time), meter (length), kilogram (mass), ampere (electric current), kelvin (temperature), mole (amount of substance), and candela (luminous intensity).
• Metric units of length include the kilometer, hectometer, dekameter, meter, decimeter, centimeter, and millimeter.
• Metric units of weight include the kilogram, hectogram, dekagram, gram, decigram, centigram, and milligram.
• Metric units of volume include the kiloliter, hectoliter, dekaliter, liter, deciliter, centiliter, and milliliter.

Standard Units of Measurement

The standard system of measurement in the US is also referred to as the customary system. The precursor of this system is the English system used by the Anglo-Saxons and Romans over a thousand years ago!

This medieval English system of measurement was officially turned into the imperial system in the UK in 1826. In the US, the English system became the customary system and officially became the standardized measurement system for the United States in 1832.

• Customary units of length include the miles, yard, foot, and inch.
• Customary units of weight include the ounce, pound, and ton.
• Customary units of capacity include the fluid ounce, pint, cup, quart, and gallon.

Imperial Units of Measurement

The imperial system became the official system of measurement in the UK in 1826. It used many of the same units as the customary system, such as the foot, yard, mile, acre, fluid ounce, pint, quart, and gallon.

However, while the names of the units are the same, the measurements of the units have minor differences.

The imperial system was used throughout the UK for over a hundred years until it was replaced with the metric system in the mid-1900s.

### Measurement in everyday life

We make measurements all the time, whether we realize it or not. When we figure out how early we have to wake up in the morning according to what time we have to be at school that day, we’re thinking about time measurement.

When we go clothing shopping, our size is another standardized system of measurement that we use to find clothes that fit.

Measurement is all around us, which is why having a firm grasp of the topic is so important!

### When do students begin to learn measurement?

Students as young as 5 may begin learning about measurement. Children can make non-standardized comparison measurements from an even younger age, but comprehension of standard units and numbers comes around 1st grade.

Measurement is the comparison of an object or event with a known system of units to determine a specific characteristic about it.

SI units of measurement are the international system of units used in science and commerce around the world. The SI base units are the second, meter, kilogram, ampere, kelvin, mole, and candela.

As your child advances to different grade levels, their understanding of Geometry math concepts is broadened. Fifth-grade math has the highest level of geometry math concepts of the grades in elementary. If your child stays on track, these more challenging concepts can easily be learned and practiced.

The three common systems of measurement are the metric system, the customary system, and the SI system.

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