Measuring and Comparing
We can measure and compare the length, height, and mass of objects using our hands, feet, blocks, and other objects as non-standard units of measurement.
What You Need to Know
We can measure and compare the length, height, and mass of objects using our hands, feet, blocks, and other objects as non-standard units of measurement.
Key Concept Diagram
We compare objects using language: longer, shorter, taller, heavier, lighter
Non-standard units include hand spans, footsteps, blocks, and paper clips
Measuring means finding how many units fit along, in, or around an object
We always need to start measuring from the same end (no gaps, no overlaps)
Key Vocabulary
length
How long or short something is from end to end
height
How tall something is from bottom to top
mass
How heavy something is
non-standard unit
An everyday object used for measuring, like a hand span or a block
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
A pencil is 8 paper clips long. A crayon is 5 paper clips long. Which is longer?
Question 2
What is a "non-standard unit" of measurement?
Question 3
When measuring the length of a desk with blocks, what is most important?
Question 4
Which word means heavier?
Question 5
Tom measures his book with hand spans and gets 3. Mia measures the same book and gets 4. Why are they different?
Key Concepts Summary
- ●We compare objects using language: longer, shorter, taller, heavier, lighter
- ●Non-standard units include hand spans, footsteps, blocks, and paper clips
- ●Measuring means finding how many units fit along, in, or around an object
- ●We always need to start measuring from the same end (no gaps, no overlaps)