The Sieve of Eratosthenes: still in its prime after more than 2,000 years!
I've updated the interactive version on Transum. Students colour in multiples to reveal the prime numbers up to 100. A colourful lesson in elimination!

Discuss — Multiplicative Change #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #Extension #Challenge #MultiplicativeChange #Ratio #Proportion #Reasoning #ProblemSolving
Discuss — Using Graphs #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #ProblemSolving #Reasoning #UsingGraphs
The Sieve of Eratosthenes: still in its prime after more than 2,000 years!
I've updated the interactive version on Transum. Students colour in multiples to reveal the prime numbers up to 100. A colourful lesson in elimination!
Discuss — Simultaneous Equations #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #MathsDiscussion #TalkTasks #SimultaneousEquations #Algebra
Discuss — Using Graphs #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #Extension #Challenge #UsingGraphs #Reasoning #ProblemSolving
Discuss — Place Value and Rounding #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #MathsStarter #PlaceValueAndRounding #Reasoning #ProblemSolving
Discuss — Equations and Inequalities #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #MathsStarter #EquationsAndInequalities
Discuss — Gradients & Lines #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #RealLifeMaths #Applications #GradientsLines #LinearGraphs #Algebra #Reasoning #ProblemSolving
Discuss — Functions #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #RealLifeMaths #Applications #Functions
Discuss — Representing Data #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #MathsStarter #RepresentingData
Discuss — Addition and Subtraction #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #RealLifeMaths #Applications #AdditionAndSubtraction
Can you work out the value of each letter using the clues in the clouds? Put your ratio skills to the test as you drag the clues around and decide which to use first. Logical thinking required. Have fun!
Discuss — Congruence, Similarity and Enlargement #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #RealLifeMaths #Applications #CongruenceSimilarityAndEnlargement #Proportion #Ratio #Reasoning #ProblemSolving
Discuss — Three-Dimensional Shapes #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #ProblemSolving #Reasoning #ThreeDimensionalShapes
Discuss — Using Graphs #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #RealLifeMaths #Applications #UsingGraphs #Reasoning #ProblemSolving
Discuss — Multiplying and Dividing Fractions #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #MathsStarter #MultiplyingAndDividingFractions #Volume #Geometry
Discuss — Representing Data #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #ProblemSolving #Reasoning #RepresentingData #LinearGraphs #Algebra
Discuss — Non-linear Graphs #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #MathsDiscussion #TalkTasks #NonLinearGraphs
New blog post - Explores one of my favourite questions to ask after finishing a worked example: What would happen if I changed the question?
Discuss — Straight Line Graphs #maths #mathsteacher #UKMathsChat #GCSEMaths #MathsChat #Discussion #RealLifeMaths #Applications #StraightLineGraphs #LinearGraphs #Algebra