Valentine's Day graph
y = x ± √(4 – x²)
agg file
An Easter Egg
x²/4 + y²/4 + 5z²/36 = 1
and: r = z + 3.5
agg file
A pringle: x² – y² = z
(hyperbolic paraboloid)
agg file

PROFESSIONAL
resources (UK)
MATHIGON  amazing!
Philip Legner
and team
NRICH: Online Maths Club
for students and teachers
Underground Mathematics
Resources for A level
PLUS Magazine
living mathematics
STEM Learning
Technology and Mathematics
Tutor Pages
search for Maths Tutors in your area
TES Resources
Secondary
Mathematics
MATHS CAREERS
from IMA
MathsPad
Interactive Student Tasks
INTEGRAL (MEI)
Wideranging subscription site
AMSP (MEI)
Advanced Maths Support Prog.
Cambridge Digital Library
Newton's Principia,
and others!
MyMaths
Interactive learning
(OUP)
HegartyMaths
Colin Hegarty
Bletchley Park
Code breakers
Kangaroo Maths
Matt Nixon/Steve Lomax
Maths is Fun
Rod Pierce
Maths Gear
Steve Mould
Transum Mathematics
John Transum
Exam Solutions
Stuart Sidders
Chalkdust
Magazine for the
mathematically curious 
Resources from
BUSY TEACHERS
Graham Colman
Colmanweb
Mark Dawes
Quibans
Bryan Dye (the late)
 MathsNet
Owen Elton
MatheMinutes
William Emeny
Great Teaching Ideas
Jamie Frost
Dr
Frost Maths
Jonny Griffiths
Carom Maths
Risps for A level
Further Risps
Making Statistics Vital
James Grime
Singing Banana
Numberphile
Dina Grimes
Grimes Mathematics
Jonathan Hall
MathsBot
Snezana Lawrence
Maths is Good for You
Mark McCourt
EMaths
Peter Mitchell
Meikleriggs
Dan RodriguezClark
Interactive Maths
Andrew Sharp
Puzzle of the Week
Ben Sparks
Maths and Music
Don Steward (the late)
Median
Paul Williams
PGMaths
Mark Willis
YouTube videos

REGULAR
BLOGGERS
Colleen Young
Mathematics, Learning and
Technology
Craig Barton
Blog
Podcasts
Diagnostic Questions
Variation Theory
SSDD
Venn
Diagrams
Jo Morgan
Resouceaholic
Gems

Overseas
Resources
= EUROPE =
teachMathematics
Jim Noble et al
InThinking
Tim Garry (IB)
NumWorx
Freudenthal Institute
Maths Online
University of Vienna
= USA =
Julia Robinson
Math Festival
Gather4Gardner
Phet Simulations
University of Colorado
Math Forum
NCTM
YouCubed
Jo Boaler
Vi Hart YT channel
clever drawings
Khan Academy
Sal Khan
eMathHelp
Paul
Study.com
Adrian Ridner
MathWorld
Wolfram
Matrices
Math Medics
Vectors
Paul Kirnu
= FAR EAST =
Mathster
Richard Noble, Mark Edes
= AUSTRALIA =
Seashells of NSW
Des Beechey
= INDIA =
Number Recreations
Railways Director
= SOUTH AFRICA =
SchoolMaths
Gerrit Stols
Dynamic Math
Michael de Villiers 
SOFTWARE
Autograph
Geogebra
Desmos
==
Geometer's Sketchpad
Cabri Geometry
Geom. Expressions
GXWeb
==
WolframAlpha
Photomath
Mathletics
==
Convert to LaTeX
UnicodeDeccodes
==
Gather Town
Conferencing with conversation! 