Metric System Lesson 4th Grade

America hasn’t fully adopted the metric system yet…

… but believe me, we’re slowly inching towards it!

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The Metric System!

The metric system of measurement is the standard way of measuring distance, calculating height, and most of the other day-to-day items.

What is the Metric System?

Look at the map above.

Why do we learn it?

Do you know of any careers or people who use the metric system?

Open Ended

Get out your Math notebook and paste the chart in into it!

Study it! Do you see a pattern anywhere? Type your answer in the chat.

Open Ended

Next...Highlight the units in the chart under "By". Hightlight them at the bottom of the page too so you can tell what they mean in the future!

Can you find these units anywhere else in the chart? Type your answer in the chat!

Multiple Choice

 The Metric system is based on units of__.

• 1's

• 5's

• 10's

• 15's

Open Ended

Can we connect the Metric System increasing and decreasing by ten with any other math concepts we've learned this year?

Open Ended

Let's practice!

Use your chart to help you.

Which unit would you use to measure a jug of milk? Why?

Open Ended

Let's practice!

Use your chart to help you.

Which unit would you use to measure the length of a swimming pool? Why?

Open Ended

Let's practice!

Use your chart to help you.

Which unit would you use to measure a car traveling very fast?

Example:

Two of the metric system units of measuring length are centimeters and millimeters abbreviated as cm and mm respectively. To convert centimeters to millimeters, multiply the given value by 10 as there are 10 mm in 1 cm.

⇒ 1 cm = 10 mm

⇒ 600 cm = 600 × 10 mm

⇒ 600 cm = 6000 mm

Therefore, the fish is 6000 mm long.

Reasoning

Paul saw a giant fish that was 600 cm long in an aquarium. Help Paul calculate its length in mm.

Question

Draw

Convert 1,000 meters to kilometers. Hint: 1 m = 1/1000 km