Understanding Metric Units
Let's explore how we measure length in the metric system!
We use different units depending on how big or small something is. The main units are millimeters (mm),
centimeters (cm), meters (m), and kilometers (km). Today we'll learn which unit is best for measuring
different things!
How to Choose the Right Unit
1️⃣ Think about size: Is it tiny, small, big, or very big?
2️⃣ Know the units: mm for tiny, cm for small, m for big, km for very big
3️⃣ Practice guessing and then check with a ruler or measuring tape!
Let's Practice Together!
Example 1: What's the best unit to measure...
...the length of a banana?
Centimeters (cm)
Meters (m)
Kilometers (km)
Example 2: What's the best unit to measure...
...the length of your school playground?
Centimeters (cm)
Meters (m)
Kilometers (km)
Parent Tips 🌟
- Make it real: Point to objects around your home and ask "Should we measure this in cm or m?"
- Estimation game: Have your child guess lengths before measuring to develop intuition about units.
- Walking distances: When walking somewhere, count steps and relate to meters to understand longer distances.