Grade 4

Perimeter, area, and measurement choice

Decide whether a problem is asking about the boundary around a shape or the space inside it.

श्रेणी: Number Sense & Math Thinking 10 min Confident
Aa Tap Say पढ़ें

Perimeter measures distance around the edge. Area measures the surface covered inside. The question clue matters.

Read and think

Open one card at a time, read the text together, and use the audio button when hearing the line once helps.

Read and think Text card

A rectangular garden is 8 m long and 5 m wide. How much fencing is needed?

perimeter clue

Fencing goes around the outside edge.

Example: Perimeter = 8 + 5 + 8 + 5 = 26 m

Read and think Text card

The same garden needs grass seed. How much ground is covered?

area clue

Grass covers the inside surface.

Example: Area = 8 x 5 = 40 square m

Read and think Text card

A ribbon goes around a gift box.

real-life clue

This is a perimeter situation.

Example: Ribbon length uses perimeter thinking.

Read and think Text card

Tiles cover a classroom floor.

real-life clue

This is an area situation.

Example: Floor coverage uses area thinking.

More in this topic

These next steps stay in the same stage so the child does not get sent backward.

Grade 4

Place value and rounding

Use thousands, hundreds, tens, and ones to read larger numbers and round them sensibly.