Definition of Length

What is lenght:

Is a linear metric unit of measurement used to regognize the longitud of something, also is a measure used as a unit to estimate distances. We can use the lenght to measure many things and know the distance between 2 or more places, objects and even geometric forms, without the lenght we couldn't know many things, have the useful objects that we have right now and create the things all the world have. This unit of measurement hep us in many things and we have to learn to use it, it let us know a lot of things, so for being an intelligent and useful person in the life we have to know how to use the lenght.

Units of lenght

Units of lenght

1. 1o millimeters (mm) = 1 centimeter (cm)
2. 10 centimeters =1 decimeter= 100 millimeters
3. 10 decimeters = 1 meter (m)= 1000 millimeters
4. 10 meters = 1 dekameter= (dam)
5. 10 dekameters = 1 hectometer (hm) =10 meter
6. 10 hectometers = 1 kilometer (km) =1000 meters

Justification table

Here we are justifying the first one of the units of lenght table.

Here we are justifying # 2 of the units of lenght table

Here we are justifying # 3 of the units of lenght table.

Here we are justifying #4 of units of lenght table.

Here we are justifying #5 of the units of lenght table.

Here we are justifying #6 of the units of lenght table.

Justification Measuring in Meters

This is the measuring with meters (table):

Justifications:

• A Km is ten part (0.1) of one hectomer because we are changing a bigger fraction with a smaller one,so this means that it cannot complete the whole unit to conform a kilometer. That's why we put the 0 zero, after the 0 we put the (,) for separed the small fraction with the units. the we put 1 because 10 hectometers conform 1 km so it cannot complete the whole km but it is 1 part of the 10 hectomers that conform a kilometer so in fractions it would be 1/10 = to 0.1.
• So in to others 5 justifications is the same but if it complete all the unit so it would be example : 1,0 these means that it conform the whole unit.
• Also it would be a one km is 0.01 decameter because it whole cannot complete the unit so it would be 0 and the (,) to separed the units and the decimeter, centimeters, miles and etc.. so the after the (,) it not complete a decimeter so thats why the other 0 and finally the one 1 because is only one part of a decimeter to form a kilometer.
  

Estimation in Length

This is the table of the estimate length of the MIO routes:

Length Problems

1. If from plaza de toros station to universidades station, there are 4.2 km how many hm, dam, meters, and miles would be there?

• Answer: there would be 42 hm
• there would be 420 dam
• there would be 4200 meters
• there would be 42000 miles

2. If from universidades station to plaza de toros station there are 42000 miles how many km, hm, meters and dam would be there?

• Answere: there would be 4.2 km
• there would be 42 hm
• there woul be 4200 meters
• there would be 420 dam

3. If from universidades station to plaza de toros station there are 420000 cm how many meters, km, hm, dam, mm and miles would be there?

• Answere: there would be 4200 meters
• there would be 4.2 km
• there would be 42 hm
• there would be 420 dam
• there would be 4200000 mm
• there would be 42000 miles

4. If from universidades station to chiminangos station there are 16.1 km, how many hm, dam, meters, and miles would be there?

• Answer: There would be 161 hm
• there would be 1610 dam
• there would be 16100 meters
• there would be 161000 miles

5. If from chiminangos station to universidades station there are 161000 miles, how many km, hm, dam and meters would be there?

• Answers: There would be 16.1 km
• there would be 161 hm
• there would be 1610 dam
• there would be 16100 meters

Differences between Kms and Miles

This is the differences between Miles and Kilometers:

Game (Metric Units of Length)

This is a game of the Metric Units of length, I hope you enjoy it and like:
http://www.teachingmeasures.co.uk/menu.html

Video (Metric Units of Length)