## Ratios and Units of Measurement

#### Aligned To Common Core Standard:

**Grade 6 Proportional Relationships** - 6.RP.A.3d

Why Are There Different Measurement Systems (i.e., U.S. standard and metric)
How do you tell someone how far or how big something is? We have a different language to communicate this information- the measurement system.
We are all familiar with the tiny alphabets written next to the number. These small alphabets are commonly termed as measuring units. They define how light or heavy a thing is, and how fast or slow the car is traveling. The interesting thing about these measuring units is that they are not universal. It means that New York Times Square building and London’s Big Ben are not termed in the same measuring units.
The first difference that measuring units share is of nationalities. In different countries, different measuring units are used. With that difference in mind, let's dig deeper in to the two widely used measuring systems
**U.S STANDARD**
U.S customary units are used in the United States to define the measurements of things. let us have a brief rundown of how Americans define lengths, weights, and temperature in term of measurements
**Length** - Inches, Miles, Yards, Feet
**Weight** - Mass, Ounce, Pound, Ton
**Liquid Volume** - Cup, Gallons, Ounce, Pint
**Metric System**
Most countries follow the metric system of measurements. It is system with lengths in meters, weight in grams and liquids in liter.
**Length** - Centimeter, Meter, Kilometer, Millimeter
**Weight**- Gram, Kilogram
**Liquid Volume**- Liter, Milliliter

### Printable Worksheets And Lessons

- Meters to Feet Step-by-step
Lesson- Anyone who was born with exactly 12 inch feet has a
natural advantage. Although I would still use the tape measure instead.

- Guided Lesson
- Compare units, convert units, and division with units.

- Guided Lesson Explanation
- This is where measurement starts to get a bit tougher for students.

- Practice Worksheet
- A huge series of conversion problems for kids to work with.

- Triangle Proportions to
Determine Length Five Pack- It is not well stated in the worksheet,
but these are proportions of similar triangles.

- Matching Worksheet - This is one of the weirdest matching sheets I have. It does make them think though.

#### Homework Sheets

This standard expects students to have a reference or know length units cold.

- Homework 1 - We have to convert meters to feet by multiplying.
- Homework 2 - Which is more, 9 centimeters or 50 millimeters?
- Homework 3 - Divide. 80 kilometers 40 meters ÷ 20

#### Practice Worksheets

These problems are worded more friendly than some of the homework problems.

- Practice 1 - 2 times of 3 kilometers 5 meters = _____ kilometers ____ meters
- Practice 2 - How many centimeters are there in 8 kilometers?
- Practice 3 - Which is more, 10 inches or 6 feet?