Perimeter
Measure and calculate the perimeter of straight-sided shapes.
Taught in Primary 4 in Nigeria (NERDC), Year 3 in United Kingdom (National Curriculum), Grade 4 in Canada (Ontario).
Nigeria (NERDC)
Primary 4
- Strand
- Mensuration and Geometry
- Called
- Perimeter
- How it's taught
- Measure with local non-standard units then metric; conversions drilled; perimeter and area by formula with working shown.
United Kingdom (National Curriculum)
Year 3
- Strand
- Measurement
- Called
- Perimeter
- How it's taught
- Practical measuring with rulers, scales and containers; conversions on number lines; area from counting squares to formulae.
Canada (Ontario)
Grade 4
- Strand
- Spatial Sense
- Called
- Perimeter
- How it's taught
- Measurement sits in Spatial Sense: estimate first, measure with appropriate tools, and justify unit choices; formulas developed from decomposition.