the MathsLinks Network https://mathslinks.net Links and resources for maths teachers. en Copyright 2019 2019-01-23T21:11:00+00:00 https://dedhk00m7fqyl.cloudfront.net/ml/favicon.png the MathsLinks Network https://mathslinks.net Will These 6 Sneaky Charts, Maps, and Graphs Deceive Your Students? https://mathslinks.net/links/will-these-6-sneaky-charts-maps-and-graphs-deceive-your-students https://mathslinks.net/links/will-these-6-sneaky-charts-maps-and-graphs-deceive-your-students#When:06:39:00Z This article explores 6 data visualisations that are misleading. 5 of the 6 are US centric. Article, Data, Misleading Graphs, Statistics and probability, Data classification, visualisation and analysis, MA4-DAT-C-01 Data classification and visualisation, 2026-09-15T06:39:00+00:00 Screenshot of Will These 6 Sneaky Charts, Maps, and Graphs Deceive Your Students?

This article explores 6 data visualisations that are misleading. 5 of the 6 are US centric.


On MathsLinks: https://mathslinks.net/links/will-these-6-sneaky-charts-maps-and-graphs-deceive-your-students
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> How A Random System Can Actually Be Predictable https://mathslinks.net/links/how-a-random-system-can-actually-be-predictable https://mathslinks.net/links/how-a-random-system-can-actually-be-predictable#When:04:46:00Z A brief discussion of the Galton board and the normal distribution. Publisher, Veritasium, Video, YouTube, YouTube Short, Number, Probability, Unit 3 Topic 3 Discrete random variables, Binomial distributions, ACMMM147 understand the concepts of Bernoulli trials and the concept of a binomial random vari…, ACMMM148 identify contexts suitable for modelling by binomial random variables, ACMMM150 use binomial distributions and associated probabilities to solve practical problems., Unit 4 Topic 2 Continuous random variables and the normal distribution, Normal distributions, Unit 4 Topic 3 Interval estimates for proportions, Sample proportions, ACMMM175 examine the approximate normality of the distribution of pˆp̂ for large samples, Statistical Analysis, MA-S3 Random Variables, S3.2 The normal distribution, Statistical Analysis, ME-S1 The Binomial Distribution, ME-S1.1 Bernoulli and binomial distributions, Statistical analysis, Random variables, Continuous random variables, The normal distribution, Statistical analysis, The binomial distribution and sampling distribution of the mean, Bernoulli distributions, Binomial distributions, 2026-09-12T04:46:00+00:00 Screenshot of How A Random System Can Actually Be Predictable

A brief discussion of the Galton board and the normal distribution.


On MathsLinks: https://mathslinks.net/links/how-a-random-system-can-actually-be-predictable
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> The Oldest Unsolved Problem in Math https://mathslinks.net/links/the-oldest-unsolved-problem-in-math https://mathslinks.net/links/the-oldest-unsolved-problem-in-math#When:02:26:00Z Do odd perfect numbers exist? Publisher, Veritasium, Video, YouTube, Number, Prime Numbers, Mersenne Prime, Special Numbers, 2026-08-29T02:26:00+00:00 Screenshot of The Oldest Unsolved Problem in Math

Do odd perfect numbers exist?


On MathsLinks: https://mathslinks.net/links/the-oldest-unsolved-problem-in-math
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Discovering the Formula for the Volume of a Sphere https://mathslinks.net/links/discovering-the-formula-for-the-volume-of-a-sphere https://mathslinks.net/links/discovering-the-formula-for-the-volume-of-a-sphere#When:05:48:00Z Deduce the formula for the volume of a sphere by observing this simulation of a sphere being immersed in a cylinder filled with liquid. GeoGebra, Interactive, Measurement, Volume, Measurement and Geometry, Using units of measurement, ACMMG271 Year 10A Solve problems involving surface area and volume of right pyramids, right cones, s, Unit 3 Topic 1 Measurement, Volume and capacity, ACMEM104 use formulas to find the volume of pyramids and spheres. , Unit 1 Topic 3 Shape and measurement, Mensuration, ACMGM019 calculate the volumes of standard three-dimensional objects such as spheres, rectangu…, Measurement and space, Volume, MA5-VOL-P-01 Volume B, Measurement, Applications of measurement, Perimeter, area and volume, 2026-08-21T05:48:00+00:00 Screenshot of Discovering the Formula for the Volume of a Sphere

Deduce the formula for the volume of a sphere by observing this simulation of a sphere being immersed in a cylinder filled with liquid.


On MathsLinks: https://mathslinks.net/links/discovering-the-formula-for-the-volume-of-a-sphere
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Circle Theorems with Self-Marking Practice https://mathslinks.net/links/circle-theorems-with-self-marking-practice https://mathslinks.net/links/circle-theorems-with-self-marking-practice#When:11:03:00Z Each circle theorem explained with a diagram, followed by randomly-generated questions that mark themselves as students work through them. Activity, Hands-on, Explanation, Resources, Revision, General, Mathematician, Measurement, Area, Space and Geometry, Circle Geometry, Circles, Unit 1 Topic 3 Geometry, Circle properties and their proofs including the following theorems:, ACMSM029 An angle in a semicircle is a right angle, ACMSM030 The angle at the centre subtended by an arc of a circle is twice the angle at the cir…, ACMSM031 Angles at the circumference of a circle subtended by the same arc are equal, ACMSM035 When two chords of a circle intersect, the product of the lengths of the intervals on…, ACMSM036 When a secant (meeting the circle at AA and BB) and a tangent (meeting the circle at …, Unit 3 Topic 1 Complex numbers, Roots of complex numbers:, ACMSM087 determine and examine the nthnth roots of unity and their location on the unit circle, 2026-08-15T11:03:00+00:00 Screenshot of Circle Theorems with Self-Marking Practice

Each circle theorem explained with a diagram, followed by randomly-generated questions that mark themselves as students work through them.


On MathsLinks: https://mathslinks.net/links/circle-theorems-with-self-marking-practice
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> See how the price of everything has changed https://mathslinks.net/links/see-how-the-price-of-everything-has-changed https://mathslinks.net/links/see-how-the-price-of-everything-has-changed#When:08:17:00Z The cost of most everyday items is up (inflation). This ABC News article looks at by how much. Article, Number, Consumer Arithmetic, Financial mathematics, Investment and loans, Investment, 2026-07-30T08:17:00+00:00 Screenshot of See how the price of everything has changed

The cost of most everyday items is up (inflation). This ABC News article looks at by how much.


On MathsLinks: https://mathslinks.net/links/see-how-the-price-of-everything-has-changed
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Beautiful proofs for summing series https://mathslinks.net/links/beautiful-proofs-for-summing-series https://mathslinks.net/links/beautiful-proofs-for-summing-series#When:07:07:00Z Ben Sparks with stunning visual proofs of some famous sums of series. Publisher, Numberphile, Ben Sparks, Video, YouTube, Advanced, Series and Sequences, Unit 2 Topic 2 Arithmetic and geometric sequences and series, Financial Mathematics, MA-M1 Modelling Financial Situations, M1.2 Arithmetic sequences and series, Sequences and series, Sequences and series, Arithmetic sequences and series, 2026-07-22T07:07:00+00:00 Screenshot of Beautiful proofs for summing series

Ben Sparks with stunning visual proofs of some famous sums of series.


On MathsLinks: https://mathslinks.net/links/beautiful-proofs-for-summing-series
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Normal Distribution Graph https://mathslinks.net/links/normal-distribution-graph https://mathslinks.net/links/normal-distribution-graph#When:00:31:00Z Shows the connection between the normal distribution graph and the normal distribution table. Desmos, Data, Data Analysis, Unit 4 Topic 2 Continuous random variables and the normal distribution, Normal distributions, Statistical analysis, Random variables, The normal distribution, Statistics, The normal distribution, Normally distributed datasets, 2026-07-22T00:31:00+00:00 Screenshot of Normal Distribution Graph

Shows the connection between the normal distribution graph and the normal distribution table.


On MathsLinks: https://mathslinks.net/links/normal-distribution-graph
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> GamesMom - Maths Games https://mathslinks.net/links/gamesmom-maths-games https://mathslinks.net/links/gamesmom-maths-games#When:17:21:00Z Numbers and quick mental arithmetic. Including Times Tables, Multiplication Chart, Number Bonds, Greater or Less, Counting and Odd or Even. Activity, Exercises, General, Numeracy, Number, Operations, Addition, 2026-07-09T17:21:00+00:00 Screenshot of GamesMom - Maths Games

Numbers and quick mental arithmetic. Including Times Tables, Multiplication Chart, Number Bonds, Greater or Less, Counting and Odd or Even.


On MathsLinks: https://mathslinks.net/links/gamesmom-maths-games
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Grid Paper Shop https://mathslinks.net/links/grid-paper-shop https://mathslinks.net/links/grid-paper-shop#When:07:17:00Z No-signup graph paper generator for teachers and students. You can make custom graph paper with different spacing, paper sizes, margins, colors, and axes, then export it as a PDF, SVG, or PNG. Graph Paper, Printable, General, Graph Paper, 2026-07-03T07:17:00+00:00 Screenshot of Grid Paper Shop

No-signup graph paper generator for teachers and students. You can make custom graph paper with different spacing, paper sizes, margins, colors, and axes, then export it as a PDF, SVG, or PNG.


On MathsLinks: https://mathslinks.net/links/grid-paper-shop
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Non-right-angled trigonometry - faded worked examples https://mathslinks.net/faculty/non-right-angled-trigonometry-faded-worked-examples https://mathslinks.net/faculty/non-right-angled-trigonometry-faded-worked-examples#When:06:31:00Z Based on the Cognitive Load Theory idea of faded worked examples. These five sheets provide faded worked examples forThe sine rule - using the sine rule to find a sideThe sine rule - using the sine rule to find an angleThe cosine rule - using the cosine rule to find a sideThe cosine rule - using the cosine rule to find an angleThe area formula Worked examples, Faded worked examples, Measurement, Trigonometry, Measurement and Geometry, Pythagoras and trigonometry, ACMMG273 Year 10A Establish the sine, cosine and area rules for any triangle and solve related probl, Unit 2 Topic 2 Applications of trigonometry, Applications of trigonometry, ACMGM036 solve problems involving non-right-angled triangles using the sine rule (ambiguous ca…, Unit 1 Topic 2 Trigonometric functions, Cosine and sine rules, ACMMM031 establish and use the sine and cosine rules and the formula Area=12bcsinAArea=12bcsin…, Measurement and space, Pythagoras and trigonometry, MA5-TRG-P-01 Trigonometry C (Path), Measurement, Trigonometry, 2026-07-01T06:31:00+00:00 Preview of Non-right-angled trigonometry - faded worked examples

Based on the Cognitive Load Theory idea of faded worked examples. These five sheets provide faded worked examples for

  • The sine rule - using the sine rule to find a side
  • The sine rule - using the sine rule to find an angle
  • The cosine rule - using the cosine rule to find a side
  • The cosine rule - using the cosine rule to find an angle
  • The area formula

On MathsFaculty: https://mathslinks.net/faculty/non-right-angled-trigonometry-faded-worked-examples
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Printable Graph Paper Generator https://mathslinks.net/links/printable-graph-paper-generator https://mathslinks.net/links/printable-graph-paper-generator#When:09:29:00Z A free printable graph paper generator for teachers, students, and homeschool families. Create and download PDF or PNG templates for square grid, dot grid, coordinate plane, isometric, polar, semi-log, lined, hex, and triangle paper. Includes ready-made A4, Letter, and A3 graph paper templates with no login required. Graph Paper, Printable, General, Graph Paper, Number and Algebra, Linear and nonlinear relationships, ACMNA178 Year 7 Given coordinates, plot points on the Cartesian plane, and find coordinates for a gi, ACMNA215 Year 9 Sketch linear graphs using the coordinates of two points, 2026-05-29T09:29:00+00:00 Screenshot of Printable Graph Paper Generator

A free printable graph paper generator for teachers, students, and homeschool families. Create and download PDF or PNG templates for square grid, dot grid, coordinate plane, isometric, polar, semi-log, lined, hex, and triangle paper. Includes ready-made A4, Letter, and A3 graph paper templates with no login required.


On MathsLinks: https://mathslinks.net/links/printable-graph-paper-generator
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Mathematics Extension 1 revision checklist https://mathslinks.net/faculty/mathematics-extension-1-revision-checklist https://mathslinks.net/faculty/mathematics-extension-1-revision-checklist#When:08:20:00Z This is a revision checklist for Mathematics Extension 1 students to use as they prepared for the HSC Examination.This could be printed this as an A5 booklet.Suggestions for improvement are welcomed in the comments.This checklist is for the 2017 syllabus, last HSC examination, 2026. Revision, PDF, Functions, ME-F1 Further Work with Functions, ME-F2 Polynomials, Trigonometric Functions, ME-T1 Inverse Trigonometric Functions, ME-T2 Further Trigonometric Identities, ME-T3 Trigonometric Equations, Calculus, ME-C1 Rates of Change, ME-C2 Further Calculus Skills, ME-C3 Applications of Calculus, Combinatorics, ME-A1 Working with Combinatorics, Proof, ME-P1 Proof by Mathematical Induction, Vectors, ME-V1 Introduction to Vectors, Statistical Analysis, ME-S1 The Binomial Distribution, 2026-04-03T08:20:00+00:00 Preview of Mathematics Extension 1 revision checklist

This is a revision checklist for Mathematics Extension 1 students to use as they prepared for the HSC Examination.

This could be printed this as an A5 booklet.

Suggestions for improvement are welcomed in the comments.

This checklist is for the 2017 syllabus, last HSC examination, 2026.


On MathsFaculty: https://mathslinks.net/faculty/mathematics-extension-1-revision-checklist
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Congruent Triangles Song https://mathslinks.net/links/congruent-triangles-song https://mathslinks.net/links/congruent-triangles-song#When:13:21:00Z A song listing the congruency shortcuts for triangles! Just the right amount of cringe to get the kids engaged, and it's quite the earworm! I love to make my students copy the arm movements and march around the classroom. Memory Tool, Video, Music Video, YouTube, Advanced, Proof, Space and Geometry, Angles, Congruence, Triangles, 2026-02-27T13:21:00+00:00 Screenshot of Congruent Triangles Song

A song listing the congruency shortcuts for triangles! Just the right amount of cringe to get the kids engaged, and it's quite the earworm! I love to make my students copy the arm movements and march around the classroom.


On MathsLinks: https://mathslinks.net/links/congruent-triangles-song
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Least squares method visualised https://mathslinks.net/links/least-squares-method-visualised https://mathslinks.net/links/least-squares-method-visualised#When:08:06:00Z A short animation showing the least squares method for finding a regression line. Video, YouTube, Data, Bivariate data, Statistics, Bivariate data analysis, Scatter plots and lines of best fit, 2026-02-18T08:06:00+00:00 Screenshot of Least squares method visualised

A short animation showing the least squares method for finding a regression line.


On MathsLinks: https://mathslinks.net/links/least-squares-method-visualised
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Building Linear Equations with Balance Models https://mathslinks.net/links/building-linear-equations-with-balance-models https://mathslinks.net/links/building-linear-equations-with-balance-models#When:08:13:00Z Explore how linear equations can be represented using balance models. Connect symbolic equations to equivalent visual representations. Activity, GeoGebra, Manipulative, Patterns and Algebra, Equations, Number and Algebra, Linear and nonlinear relationships, ACMNA179 Year 7 Solve simple linear equations, ACMNA194 Year 8 Solve linear equations using algebraic and graphical techniques. Verify solutions by, Number and Algebra, MA4-10NA Equations, MA5.2-8NA Equations, Algebra, MS-A1 Formulae and Equations, Number and algebra, Equations, MA4-EQU-C-01 Equations, MA5-EQU-C-01 Equations A, MA5-EQU-P-01 Equations B (Path), Year 7, Algebra Year 7, AC9M7A03 solve one-variable linear equations with natural number solutions; verify the solution by s, Year 8, Algebra Year 8, AC9M8A02 graph linear relations on the Cartesian plane using digital tools where appropriate; solve , Algebra, Formulas and equations, 2026-01-28T08:13:00+00:00 Screenshot of Building Linear Equations with Balance Models

Explore how linear equations can be represented using balance models. Connect symbolic equations to equivalent visual representations.


On MathsLinks: https://mathslinks.net/links/building-linear-equations-with-balance-models
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Base Fibonacci https://mathslinks.net/links/base-fibonacci https://mathslinks.net/links/base-fibonacci#When:01:30:00Z Tony Padilla does a 'magic trick' with Fibonacci numbers and talks about Zeckendorf decompositions. Interesting, Publisher, Numberphile, Tony Padilla, Video, YouTube, Number, Special Numbers, Fibonacci Numbers, 2026-01-22T01:30:00+00:00 Screenshot of Base Fibonacci

Tony Padilla does a 'magic trick' with Fibonacci numbers and talks about Zeckendorf decompositions.


On MathsLinks: https://mathslinks.net/links/base-fibonacci
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Trig cheat sheets https://mathslinks.net/faculty/trig-cheat-sheets https://mathslinks.net/faculty/trig-cheat-sheets#When:00:33:00Z Trigonometric cheat sheets forAdvanced andExtension 1(NSW Syllabus) Reference, Measurement, Trigonometry, Trigonometric functions, Trigonometric identities and equations, Trigonometry and measure of angles, Radians, Trigonometry with acute angles, Trigonometry with angles of any magnitude, Trigonometric functions, Further trigonometry, Trigonometry in three dimensions, Further trigonometric identities, Further trigonometric equations, Inverse trigonometric functions, Definitions of inverse trigonometric functions, Graphs of inverse trigonometric functions, 2026-01-19T00:33:00+00:00 Preview of Trig cheat sheets

Trigonometric cheat sheets for

  • Advanced and
  • Extension 1

(NSW Syllabus)


On MathsFaculty: https://mathslinks.net/faculty/trig-cheat-sheets
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Mathematics Extension 1 (2024) booklets https://mathslinks.net/faculty/mathematics-extension-1-2024-booklets https://mathslinks.net/faculty/mathematics-extension-1-2024-booklets#When:21:27:00Z Course work booklets for the new Extension 1 course (2024 for implementation in 2026) in NSW.Booklets will be gradually added.The showcloze version is the teacher version.Note: For some topics, the Extension 1 content has been included in the Advanced booklets. See Mathematics Advanced and Extension 1 (2024) booklets(2019 version) Booklet, Student Booklet, Functions, Further work with functions, Graphical relationships, Inverse functions, Parametric form of a function or relation, Inequalities, 2026-01-18T21:27:00+00:00 Preview of Mathematics Extension 1 (2024) booklets

Course work booklets for the new Extension 1 course (2024 for implementation in 2026) in NSW.

Booklets will be gradually added.

The showcloze version is the teacher version.

Note: For some topics, the Extension 1 content has been included in the Advanced booklets. See Mathematics Advanced and Extension 1 (2024) booklets

(2019 version)


On MathsFaculty: https://mathslinks.net/faculty/mathematics-extension-1-2024-booklets
Follow MathsLinks on Twitter:@mathslinks or Facebook]]> Euclid’s algorithm https://mathslinks.net/links/euclids-algorithm https://mathslinks.net/links/euclids-algorithm#When:07:05:00Z A look at an interesting method for finding the greatest common divisor of two numbers. Publisher, Numberphile, Video, YouTube, Number, Operations, 2026-01-17T07:05:00+00:00 Screenshot of Euclid’s algorithm

A look at an interesting method for finding the greatest common divisor of two numbers.


On MathsLinks: https://mathslinks.net/links/euclids-algorithm
Follow MathsLinks on Twitter:@mathslinks or Facebook]]>