 Risp 1: Triangle Number Differences
Topic area: Proof, from AS/A2 Core

Risp 2: Sequence Tiles
Topic area: Sequences, from AS/A2 Core

Risp 3: Brackets Out, Brackets In
Topic area: Basic Algebra, from AS Core

Risp 4: Periodic Functions
Topic area: Functions, from A2 Core

Risp 5: Tangent through the Origin
Topic area: Co-ordinate Geometry, from AS Core

Risp 6: The Gold and Silver Cuboid
Topic area: Algebra, Polynomials and Curve-sketching, from AS Core

Risp 7: The Two Special Cubes
Topic area: Implicit Differentiation, from A2 Core

Risp 8: Arithmetic Simultaneous Equations
Topic area: Simultaneous Equations, from AS Core

Risp 9: A Circle Property
Topic area: Co-ordinate Geometry, from AS Core

Risp 10: More Venn Diagrams
Topic area: Co-ordinate Geometry, from AS Core
can be adapted to any subject

Risp 11: Remainders
Topic area: Remainder/Factor Theorems, from AS Core

Risp 12: Two Repeats
Topic area: Basic Algebra, from AS Core

Risp 13: Introducing e
Topic area: Basic Integration, from AS Core

Risp 14: Geoarithmetic Sequences
Topic area: Sequences, from AS Core

Risp 15: Circles Or Not?
Topic area: Circles in Coordinate Geometry, from AS Core

Risp 16: Never Positive
Topic area: Differentiation using the Quotient Rule, from A2 Core

Risp 17: Six Parabolas

Risp 18: When does fg equal gf?
Topic area: Composition of functions, from A2 Core

Risp 19: Extending the Binomial Theorem
Topic area: Binomial Theorem (including negative/fractional indices) from A2 Core

Risp 20: When does Sn = un?
Topic area: Sequences and series (including Arithmetic/Geometric) from AS Core

Topic area: any topic from AS/A2 Core

Risp 22: Doing and Undoing the Binomial Theorem
Topic area: Binomial Theorem (including negative indices)from A2 Core

Topic area: General trigonometric equations from A2 Core

Risp 24: The 3-Fact Triangles
Topic area: Sin Rule/Cos Rule/ Area Formula from AS Core

Risp 25: The answer's 1: what's the question?
Topic area: Area between two curves, Trapezium Rule, Volumes of Revolution etc from Pure Core

Risp 26: Generating the Compound Angle Formulae
Topic area: Compound Angle Formulae from A2 Core

Risp 27: Playing with Parametric Equations
Topic area: Parametric Equations from A2 Core

Risp 28: Modelling the Spread of a Disease
Topic area: Differential Equations from A2 Core

Risp 29: Odd One Out
Topic area: Everything! from A2 Core

Risp 30: How Many Differential Equations?
Topic area: Differential Equations from A2 Core

Risp 31: Building Log Equations
Topic area: Logarithms from AS Core

Risp 32: Exploring Pascal's Triangle
Topic area: Pascal's Triangle, Binomial Coefficients from A2 Core

Risp 33: Almost Identical...
Topic area: Exponentials, Percentage Error, Curve Sketching from AS Core

Risp 34: Graphing Tiles
Topic area: Curve Sketching, Coordinate Geometry, Simultaneous Equations from AS Core

Risp 35: Index Triples
Topic area: Curve Sketching, Indices from AS Core

Risp 36: First Steps into Differentiation
Topic area: Differentiation from AS Core

Risp 37: Parabolic Clues
Topic area: Quadratics, Curve Sketching from AS Core

Risp 38: Differentiation Rules OK
Topic area: Differentiation from A2 Core

Risp 39: Polynomial Equations with Unit Coefficients
Topic area: Numerical Methods from A2 Core

Risp 40: Perimeter Ratio
Topic area: Coordinate Geometry, Algebra, Curve Sketching from AS Core 