Area Under a Curve (Integration)

Estimate the area under a simple curve between two given x-values using grid-square counting or a basic trapezium approximation, and evaluate a definite integral of a single power-of-x term.

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Te reo Māori terms

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Learning objective overview

Master Teaching Guide coverage for this objective.

Current NZC (2007)
  • No direct alignment recorded
New NZC (2026)
  • NZC26-P4-MEA-MEA-P-Y10-03

Resources

Terminology

  • Definite integral
  • Limits of integration
  • Area under the curve
  • Trapezium rule
  • Numerical approximation
  • Area between two curves
  • x-intercept
  • Absolute value

Task goals

  • Foundation: Estimate the area under a simple curve between two given x-values using grid-square counting or a basic trapezium approximation, and evaluate a definite integral of a single power-of-x term.
  • Proficient: Evaluate the definite integral of a polynomial or simple rational/exponential function to find the exact area under a curve between two stated x-bounds.
  • Excellence: Find the area enclosed between a curve and the x-axis when the curve crosses the axis (splitting the integral and taking absolute values), or the area between two intersecting curves.

Where this fits

What leads into this objective, and where it goes next.

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Area Under a Curve (Integration)

Area Under a Curve (Integration)

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