Calculus – GCSE AQA Higher Further Maths revision notes
Choose a subtopic. Calculus covers Know what the gradient function gives, Know that the gradient of a function is the gradient of the tangent at that point, Differentiation of kx^n and the sum of such functions, and The equation of a tangent and normal at any point on a curve in GCSE AQA Higher Further Maths. 11 lessons in 9 subtopics.
Revise Calculus for GCSE AQA Higher Further Maths, including Know what the gradient function gives. 11 lessons across 9 subtopics.
11
Lessons
9
Subtopics
What this topic covers
Calculus has 9 subtopics, including:
Know what the gradient function gives
Know that the gradient of a function is the gradient of the tangent at that point
Differentiation of kx^n and the sum of such functions
The equation of a tangent and normal at any point on a curve
Increasing and decreasing functions
Understand and use the notation d^2y/dx^2
Calculus lessons by subtopic
11 lessons, grouped by subtopic.
Know what the gradient function gives
Introduction to the Gradient Function: Understand the meaning of the gradient function dy/dx and its relationship to the gradient of a curve and the rate of change.
Know that the gradient of a function is the gradient of the tangent at that point
Understanding Gradients and Tangents: Explore the relationship between the gradient of a function and the gradient of the tangent at a specific point. Visualise this relationship through examples and graphs.
Differentiation of kx^n and the sum of such functions
Differentiating kx^n: Learn how to differentiate expressions of the form kx^n, where n is an integer, and sums of such functions.
Understanding Increasing and Decreasing Functions: Explore the concepts of increasing and decreasing functions, and how the sign of the gradient indicates function behavior. Learn to identify intervals where a function is increasing or decreasing.
Understand and use the notation d^2y/dx^2
Introducing Second Derivatives: Learn about the notation d^2y/dx^2 and understand that it represents the rate of change of the gradient function.
Use of differentiation to find maxima and minima points on a curve
Finding Maxima and Minima Using Differentiation: Learn how to use differentiation to locate maximum and minimum points on a curve. Understand the relationship between the derivative and the shape of a graph.
Determining the Nature of Stationary Points: Discover two methods for determining whether a stationary point is a maximum, minimum, or point of inflection: using increasing/decreasing functions and the second derivative test (d^2y/dx^2).
Using calculus to find maxima and minima in simple problems
Sketch and interpret a curve with known maximum and minimum points
Curve Sketching with Maxima and Minima: Learn to sketch and interpret curves when given their maximum and minimum points. Understand how these points define the shape of the curve.
More in this course
Go back to the full GCSE AQA Higher Further Maths topic list, or practise this topic with past-paper questions.
Calculus covers Know what the gradient function gives, Know that the gradient of a function is the gradient of the tangent at that point, Differentiation of kx^n and the sum of such functions, and The equation of a tangent and normal at any point on a curve in GCSE AQA Higher Further Maths. 11 lessons in 9 subtopics.
What is a point of inflection?
A stationary point of inflection is a stationary point where the gradient is momentarily zero but the curve does not actually turn: it flattens and then continues in the same direction. The Determining the Nature of Stationary Points notes cover this in full.
How do you differentiate a fraction?
Split the fraction into separate terms, simplify using index laws, then differentiate. The Simplifying and Differentiating notes cover this in full.
What does the second derivative tell you?
The second derivative shows how the gradient is changing. The Introducing Second Derivatives notes cover this in full.
What is the nature of a stationary point?
The nature of a stationary point describes whether it is a local maximum, a local minimum or a point of inflection. The Determining the Nature of Stationary Points notes cover this in full.
How do you find the equation of a normal?
Find the tangent gradient, take its negative reciprocal, then use the same point in y − y₁ = m(x − x₁). The Finding Tangents and Normals notes cover this in full.
What is an increasing function?
A function is increasing on an interval when its gradient dy/dx is positive throughout that interval, so as x increases, y also increases, like walking uphill. The Understanding Increasing and Decreasing Functions notes cover this in full.
How do you find the equation of a tangent to a curve?
Differentiate, substitute the x-value to get the gradient, then use y − y₁ = m(x − x₁). The Finding Tangents and Normals notes cover this in full.
What is the derivative of a constant?
The derivative of a constant is zero, because a horizontal line has zero gradient everywhere: 7 = 7x⁰, and 7 × 0 = 0. The Differentiating kx^n notes cover this in full.