IGS Maths

Lesson library

Every lesson, by year and chapter

One page to find any lesson, worksheet or solutions sheet from the term. Grouped by year level and Cambridge chapter, with the date each section was taught.

Year 10

Year 10 Core Mathematics

Cambridge Year 10 textbook

Chapter 4 — Surds

Rational vs irrational numbers, simplifying surds, the four operations on surds, rationalising the denominator.

§4A & §4BWed 27 May

Simplifying surds & adding like surds

Rational vs irrational, simplifying with the largest perfect-square factor, combining like surds.

§4CFri 29 May

Multiplying & dividing surds

Product and quotient rules, squares of surds, the distributive law on brackets containing surds.

§4DFri 29 May

Rationalising the denominator

Multiply top and bottom by the surd in the denominator. Bonus binomial-numerator section.

Chapter 5 — Quadratic equations

Solving quadratic equations by factorising, real-world applications, completing the square, and the quadratic formula with the discriminant.

§5GSun 14 Jun

Solving quadratics by factorising

The Null Factor Law; common factor, monic and non-monic factorising, and difference of two squares.

§5HSun 14 Jun

Applications of quadratics

Setting up and solving worded problems, and rejecting answers that don't make sense in context.

§5ISun 14 Jun

Completing the square

Solving quadratics by completing the square, including answers in exact surd form.

§5JSun 14 Jun

Quadratic formula & discriminant

The quadratic formula, and using the discriminant to tell whether there are two, one or no solutions.

Chapter 6 — Trigonometry

Right-angled triangle trig: SOHCAHTOA, finding unknown sides and angles, real-world applications in two and three dimensions, bearings.

§6AMon 01 Jun

Trigonometric ratios

Labelling opposite, adjacent and hypotenuse; SOHCAHTOA; solving for an unknown side length.

§6BMon 01 Jun

Finding unknown angles

Inverse trig functions to find an angle from two sides. Short worded applications.

§6CWed 03 Jun

Applications in two dimensions

Angles of elevation and depression, choosing the right ratio, ramps and buildings.

§6DThu 04 Jun

Directions & bearings

Cardinal compass points, true bearings (clockwise from N), multi-leg journeys, final position.

§6EFri 05 Jun

Applications in three dimensions

Cube diagonals, masts with cables, square pyramids, rectangular boxes — the two-triangle method.

SummaryCh 4 & 6

Unit revision — Surds & Trigonometry

Cheat sheet of every rule across both chapters, decision tree for picking the right technique, six mixed worked examples, four short walkthroughs, and a 10-question quiz with deep-dive links back to every sub-topic above. Mixed-practice worksheet covers surds and trig together.

Challenge★★★ Ch 4 & 6

Extension — harder surds & trig problems

Multi-step extension questions: conjugate rationalising, surd equations, two-observer elevation, perpendicular bearings legs, square-based pyramids, and surds meeting trig. Hints plus full worked solutions on the page, with a printable worksheet and answer key.

Chapter 7 — Parabolas

Sketching parabolas: the basic shape and key features, transformations, factorisation, completing the square, the quadratic formula, applications, and intersections with lines.

§7ASun 14 Jun

Exploring parabolas

The basic parabola and its key features, plus the effect of dilations and reflections.

§7BSun 14 Jun

Sketching using transformations

Sketching from turning-point form by shifting, stretching and reflecting the basic parabola.

§7CSun 14 Jun

Sketching using factorisation

Finding x-intercepts by factorising, then the axis of symmetry and the turning point.

§7DSun 14 Jun

Sketching by completing the square

Completing the square to find the turning point, then sketching with key features labelled.

§7ESun 14 Jun

Quadratic formula & discriminant

Irrational x-intercepts from the quadratic formula, and the discriminant for the number of x-intercepts.

§7FSun 14 Jun

Applications of parabolas

Maximum and minimum problems — projectile paths and areas — using the turning point and intercepts.

§7GSun 14 Jun

Intersection of lines & parabolas

Solving a line and a parabola together, and the discriminant for whether they cross, touch or miss.

Year 11

Year 11 Mathematical Methods · Unit 1

Cambridge Methods 1&2 textbook

Chapter 10 — Counting methods

The addition and multiplication counting principles, arrangements (permutations), selections (combinations), and applications to probability.

§10ASun 14 Jun

Addition & multiplication principles

Add the choices for "this or that"; multiply them for "this and then that".

§10BSun 14 Jun

Arrangements (permutations)

Factorials and the permutations rule for ordering, including arrangements with restrictions.

§10CSun 14 Jun

Selections (combinations)

Choosing a group when order doesn't matter, team-selection problems, and selections of any size.

§10DSun 14 Jun

Applications to probability

Using arrangements and selections to count outcomes and find probabilities.

Chapter 13 — Exponentials & Logarithms

Rational exponents, graphs of exponential functions, solving exponential equations and inequalities, logarithms and the log laws, graphs of logarithmic functions.

§13BWed 27 May

Rational exponents

Fractional powers, evaluating roots, negative exponents, combining all index laws in one expression.

§13CMon 01 Jun

Graphs of exponential functions

Shape of $y=a^x$, dilations, translations and reflections, asymptote, y-intercept and range.

§13DMon 01 Jun

Solving exponential equations & inequalities

Same-base method, quadratic-in-disguise via substitution, exponential inequalities, CAS for awkward bases.

§13ETue 02 Jun

Logarithms

Definition, converting between exponential and log form, the seven log laws (product, quotient, power, change-of-base).

§13FTue 02 Jun

Using logarithms to solve exponentials

Take a log of both sides for awkward bases, exact vs decimal answers, inequality-direction with bases less than 1.

§13GWed 03 Jun

Graphs of logarithmic functions

Reflection of $y=a^x$ in $y=x$, translations on log graphs, finding the inverse of an exponential or a log function.

SummaryTue 09 Jun

Unit revision — whole of Chapter 13

Cheat sheet of every rule, decision tree for picking the right technique, six mixed worked examples, 10-question quiz, and deep-dive links back to every sub-topic above. Mixed-practice worksheet covers all six sections.

Year 12

Year 12 Mathematical Methods · Unit 3 & 4

Cambridge Methods 3&4 textbook · each topic has a permanent home in addition to the dated lesson

Chapter 10 — Numerical methods

Solving $f(x)=0$ when no algebraic technique works: bisection and Newton's method.

§10H

Bisection & Newton's method

Derive Newton's formula from a tangent, iterate bisection on $x^3+3x+1=0$, learn the three classic failure modes.

Chapter 11 — Integration

Antiderivatives, the definite integral and the Fundamental Theorem of Calculus, area under a curve, area between curves, integration by recognition, average value.

§11BWed 27 May

Antiderivatives of $e^{kx}$ & trig (Ex 6–9)

Exponential antiderivatives with initial conditions, trig antiderivatives, and the stationary-point method.

§11E/F/GMon 01 Jun

Area under a curve · the definite integral

The Fundamental Theorem of Calculus, the five properties of the definite integral, signed vs total area, and a VCAA-style application.

§11IMon 01 Jun

Area between two curves

The "top minus bottom" rule, the 4-step recipe, intersections as limits, and splitting at curve cross-overs.

§11HTue 02 Jun

Integration by recognition

Differentiate a given function and read off the antiderivative — the "hence find" pattern with chain-rule and product-rule examples.

§11JWed 03 Jun

Average value of a function

Average value as the height of the balancing rectangle, with calculus examples, the full-period shortcut for sin/cos, and a kinematics application.

Ch 11 reviewThu 04 Jun

Integration mixed practice

"Which technique?" decision tree plus mixed worked examples spanning §11E/F/G, §11I, §11H and §11J.

Year 7

Year 7 Digital Technologies

BBC micro:bit · coding

micro:bit — coding a game

Inputs and outputs, making decisions in code, improving a program, and wireless radio between two micro:bits.

Lesson 1micro:bit

Challenge Creator — Play, Understand & Improve

Play Rock–Paper–Scissors on the micro:bit, work out how its code makes a decision, then improve it. Answers save in the browser; the MakeCode editor is built in; download or print to hand in.

Lesson 2micro:bit

Challenge Creator — Radio, Design & Build

How micro:bits talk by radio, then design, build, test and share your own game. Carries on from Lesson 1 — answers are shared between the two.