CIE · lower-secondary
0862 — Lower Secondary Checkpoint Mathematics
Resources on improject.org linked to this syllabus. Official board page: Lower Secondary Checkpoint Mathematics. Counts: 293 linked (10 Worked exam video, 283 Topic video).
- Number
- Algebra
- Geometry and measure
- Statistics and probability
- Problem solving and reasoning
← Full catalogue · Revision portal
Showing 120 of 293 resources · code 0862. External videos are public YouTube embeds for discovery — not owned by IMProject unless marked IMProject.
- Worked exam videoMapped
Cambridge Lower Secondary Checkpoint 0862/01 A/M 2024 — Paper 1
Public YouTube — Math and Science with SV. Lower secondary checkpoint.
Math and Science with SV · 0862 · A/M · Paper 01
- Worked exam videoMapped
Cambridge Lower Secondary Checkpoint 0862/02 A/M 2024 — Paper 2
Public YouTube — Math and Science with SV.
Math and Science with SV · 0862 · A/M · Paper 02
- Worked exam videoMapped
Cambridge Lower Secondary Checkpoint 0862/01 A/M 2024 — marking scheme
Public YouTube — Teacher Ivan Lim.
Teacher Ivan Lim · 0862 · A/M · Paper 01
- Worked exam videoMapped
Cambridge Lower Secondary Checkpoint 0862/02 A/M 2024 — marking scheme
Public YouTube — Teacher Ivan Lim.
Teacher Ivan Lim · 0862 · A/M · Paper 02
- Worked exam videoMapped
Cambridge Lower Secondary Checkpoint 0862/01 O/N 2024 — Paper 1
Public YouTube — Teacher Ivan Lim.
Teacher Ivan Lim · 0862 · O/N · Paper 01
- Worked exam videoMapped
Cambridge Lower Secondary Checkpoint 0862/02 O/N 2024 — Paper 2
Public YouTube — Teacher Ivan Lim.
Teacher Ivan Lim · 0862 · O/N · Paper 02
- Worked exam videoMapped
Checkpoint Maths 0862/01 A/M 2024 Q1–8 — Mathematics Tour
Public YouTube — Mathematics Tour.
Mathematics Tour · 0862 · Q1–8 · A/M · Paper 01
- Worked exam videoMapped
Checkpoint Maths 0862/02 A/M 2024 Q1–8 — Mathematics Tour
Public YouTube — Mathematics Tour.
Mathematics Tour · 0862 · Q1–8 · A/M · Paper 02
- Worked exam videoMapped
Cambridge Checkpoint Maths 0862/01 2023 — full walkthrough
Public YouTube — A-Star Exam Prep.
A-Star Exam Prep · 0862 · A/M · Paper 01
- Worked exam videoMapped
Cambridge Lower Secondary Checkpoint 0862/01 A/M 2024 — full solutions
Public YouTube — Exam Preparation & Study Hacks.
Exam Preparation & Study Hacks · 0862 · A/M · Paper 01
- Topic videoSuggested
1 + 2 + 3 + 4 + … = −1/12
Famous divergent-series claim. Use carefully as enrichment — pair with “when does summing make sense?”. Not IGCSE exam content.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Infinity · Number systems
- Topic videoSuggested
1 is NOT Prime
Clear explanation of why 1 is not prime. Fits factors, primes, and unique prime factorisation.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Primes & factors
- Topic videoSuggested
2021 Summer of Math Exposition results
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
25 Math explainers you may enjoy | SoME3 results
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
291 Holes
Short hook around number systems. Good lesson starter before formal notes.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
41 and more Ulam's Spiral
Follow-up on prime patterns and quadratic formulas that give many primes. Extension / club material.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Primes & factors
- Topic videoMapped
Adding and Subtracting Fractions (1 of 4: Starter questions)
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoMapped
Adding and Subtracting Fractions (2 of 4: Common denominators)
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoMapped
Adding and Subtracting Fractions (3 of 4: Comparing methods)
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoMapped
Adding and Subtracting Fractions (4 of 4: Mixed numeral approach)
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoSuggested
All the Numbers
Tour of number types (naturals, rationals, irrationals, …). Supports classifying numbers and “what kind of number is this?”.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Answering viewer questions about refraction
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Fractions · Percentages
- Topic videoMapped
Are the boundaries unfair?
Classroom-ready explain of percentages. Use when teaching this topic in Lower Secondary / IGCSE.
1st Class Maths · 0862, 0580, 0607 · Number · Percentages
- Topic videoSuggested
But how do AI images and videos actually work? | Guest video by Welch Labs
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
But what are Hamming codes? The origin of error correction
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
But what is a convolution?
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
But what is cross-entropy? | Compression is Intelligence Part 2
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
But what is quantum computing? (Grover's Algorithm)
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
But what is the Central Limit Theorem?
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
But why would light "slow down"? | Visualizing Feynman's lecture on the refractive index
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Calculating Pi with Real Pies
Fun Pi Day starter. Links to circumference/diameter and estimating π. Works as a hook before measuring circles or π investigations.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Pi
- Topic videoMapped
Dividing fractions: why do we "keep change flip"?
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoSuggested
e (Euler's Number)
Introduces e via compound growth. Bridges indices / exponential growth toward A Level.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Indices & roots
- Topic videoSuggested
e^(iπ) in 3.14 minutes, using dynamics | DE5
Short hook around pi. Good lesson starter before formal notes.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Pi
- Topic videoMapped
Encryption & Prime Numbers (Ultimate Classroom lesson)
Classroom-ready explain of primes & factors. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Primes & factors
- Topic videoSuggested
Feeling Grumpy about Pi Day
Short hook around pi. Good lesson starter before formal notes.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Pi
- Topic videoMapped
Graphing √f(x) (2 of 2: Visualising the square root)
Classroom-ready explain of indices & roots. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Indices & roots
- Topic videoSuggested
Group theory, abstraction, and the 196,883-dimensional monster
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Hamming codes part 2: The one-line implementation
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoMapped
Happy Pi Day!
Classroom-ready explain of pi. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Pi
- Topic videoSuggested
How colliding blocks act like a beam of light...to compute pi.
Classroom-ready explain of pi. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Pi
- Topic videoSuggested
How might LLMs store facts | Deep Learning Chapter 7
Goes deeper on number systems. Suitable stretch / club after core teaching.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
How Pi was nearly changed to 3.2
Short hook around pi. Good lesson starter before formal notes.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Pi
- Topic videoSuggested
How They Fool Ya (live) | Math parody of Hallelujah
Short hook around number systems. Good lesson starter before formal notes.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
How to break Magic the Gathering.
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
Stand-up Maths · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
How to count to 1000 on two hands
Binary counting on fingers. Short starter for place value and different number bases.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Place value
- Topic videoSuggested
How to lie using visual proofs
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
How wiggling charges give rise to light
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoMapped
Increase/Decrease by a Percentage - GCSE Maths
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
1st Class Maths · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoSuggested
Infinity is bigger than you think
Countable vs uncountable infinity (Cantor). Stretch for sets / number systems; enrichment more than exam.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Infinity · Number systems
- Topic videoMapped
Integers and Order of Operations
Classroom-ready explain of number systems, place value. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Number systems · Place value
- Topic videoSuggested
Large Language Models explained briefly
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Lockdown math announcement
Short hook around number systems. Good lesson starter before formal notes.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Make math videos! | Summer of Math Exposition announcement
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Mile of Pi
Shows digits of π on a huge scale. Good for place value, significant figures, and “how precise do we need?” discussions.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Pi · Place value
- Topic videoMapped
Multiplying fractions: why does the rule work?
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoSuggested
New World's Biggest Prime Number (printed)
Engaging starter on large primes and Mersenne primes. Sparks talk about what “biggest known” means.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Primes & factors
- Topic videoSuggested
Newton’s fractal (which Newton knew nothing about)
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Oh, wait, actually the best Wordle opener is not “crane”…
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoMapped
Ordering Fractions (comparing different denominators)
Classroom lesson on comparing fractions. Direct teaching support for fractions topic.
Eddie Woo · 0862 · Number · Fractions
- Topic videoMapped
Percentage Change - GCSE Maths
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
1st Class Maths · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoSuggested
Pi and the size of the Universe
Connects π digits to scale and scientific notation. Useful when teaching standard form or estimation.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Pi · Standard form
- Topic videoSuggested
Pi Million Subscribers
Short hook around pi. Good lesson starter before formal notes.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Pi
- Topic videoSuggested
Prime Spirals
Ulam-style patterns with primes. Enrichment after factors/primes; not core exam content.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Primes & factors
- Topic videoSuggested
Q&A with Grant, windy walk edition
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Reinventing Entropy | Compression is Intelligence Part 1
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoMapped
Reverse Percentages - GCSE Maths
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
1st Class Maths · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoSuggested
Simulating an epidemic
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Simulating and understanding phase change | Guest video by Vilas Winstein
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Solving problems by adding a dimension
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Solving Wordle using information theory
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoMapped
Statistical Proportions (1 of 2: What are they?)
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoMapped
Statistical Proportions (2 of 2: Basic example)
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoSuggested
Terence Tao continuing history’s cleverest cosmological measurements
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Terence Tao on the cosmic distance ladder
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
The DP-3T algorithm for contact tracing (with Nicky Case)
Short hook around number systems. Good lesson starter before formal notes.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
The Four 4s
Classic puzzle using four 4s and operations. Great starter for order of operations and creative calculation.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Place value · Indices & roots
- Topic videoSuggested
The impossible chessboard puzzle
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
The most unexpected answer to a counting puzzle
Classroom-ready explain of number systems, place value. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems · Place value
- Topic videoSuggested
The number e explained in depth for (smart) dummies
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
Mathologer · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
The Parker Paper (a lost treasure)
Short hook around number systems. Good lesson starter before formal notes.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
The secret of the 7th row - visually explained
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
Mathologer · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
The Slightly Bungled Mersenne Prime Origin Story
Short hook around primes & factors. Good lesson starter before formal notes.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Primes & factors
- Topic videoSuggested
The unexpectedly hard windmill question (2011 IMO, P2)
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
There's never been a better time to go into math
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
This tests your understanding of light | The barber pole effect
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Twin Prime Conjecture
Open research on primes two apart. Good for “maths is still unfinished” conversations; not syllabus-tested.
Numberphile · 0580, 0607, 0862, 4MA1 · Number · Primes & factors
- Topic videoSuggested
What "Follow Your Dreams" Misses | Harvey Mudd Commencement Speech 2024
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
What is wrong with this sine memorisation pattern?
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
Stand-up Maths · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
What makes a great math explanation? | SoME2 results
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Where my explanation of Grover’s algorithm failed
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoSuggested
Why colliding blocks compute pi
Classroom-ready explain of pi. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Pi
- Topic videoSuggested
Why do prime numbers make these spirals?
Deep dive into polar plots of primes and π approximations. Club / extension after primes.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Primes & factors · Pi
- Topic videoSuggested
Why you can't comb a hairy ball, and why we care
Classroom-ready explain of number systems. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0607, 0862, 4MA1 · Number · Number systems
- Topic videoMapped
Working with Ratio - GCSE Maths
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
1st Class Maths · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoMapped
Writing and Simplifying a Ratio - GCSE Maths
Classroom-ready explain of fractions, percentages. Use when teaching this topic in Lower Secondary / IGCSE.
1st Class Maths · 0862, 0580, 0607 · Number · Fractions · Percentages
- Topic videoMapped
3D Line Problems (1 of 3: Equation between two points)
Classroom-ready explain of equations, expressions. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Equations · Expressions
- Topic videoSuggested
A Number to the Power of a Matrix
Enrichment on vectors from Numberphile. Not core exam content — use for curiosity and discussion.
Numberphile · 0580, 0606, 0607, 9709, 0862 · Algebra · Vectors
- Topic videoSuggested
A quick trick for computing eigenvalues | Chapter 15, Essence of linear algebra
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Vectors
- Topic videoSuggested
A simple equation that behaves weirdly
Goes deeper on equations, expressions. Suitable stretch / club after core teaching.
Numberphile · 0580, 0606, 0607, 9709, 0862 · Algebra · Equations · Expressions
- Topic videoSuggested
Abstract vector spaces | Chapter 16, Essence of linear algebra
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Vectors
- Topic videoMapped
Applying geometric series to a problem
Classroom-ready explain of sequences. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Sequences
- Topic videoSuggested
Base Fibonacci
Goes deeper on sequences. Suitable stretch / club after core teaching.
Numberphile · 0580, 0606, 0607, 9709, 0862 · Algebra · Sequences
- Topic videoSuggested
But what is a partial differential equation? | DE2
Classroom-ready explain of equations, expressions. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Equations · Expressions
- Topic videoMapped
Calculus & Trigonometry (review questions)
Classroom-ready explain of rates of change, functions. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Rates of change · Functions
- Topic videoMapped
Cartesian & Vector Equations (2 of 3: Line equation)
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Vectors
- Topic videoMapped
Cartesian & Vector Equations (3 of 3: Solving vector equations)
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Vectors
- Topic videoSuggested
Change of basis | Chapter 13, Essence of linear algebra
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Vectors
- Topic videoSuggested
Conway's Base 13 Function
Enrichment on graphs, functions from Numberphile. Not core exam content — use for curiosity and discussion.
Numberphile · 0580, 0606, 0607, 9709, 0862 · Algebra · Graphs · Functions
- Topic videoSuggested
Cramer's rule, explained geometrically | Chapter 12, Essence of linear algebra
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Vectors
- Topic videoSuggested
Cross products | Chapter 10, Essence of linear algebra
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Vectors
- Topic videoSuggested
Differential equations, a tourist's guide | DE1
Classroom-ready explain of equations, expressions. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Equations · Expressions
- Topic videoMapped
Differentiating Inverse Trigonometric Functions (1 of 6: Laying foundations)
Classroom-ready explain of graphs, functions. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Graphs · Functions
- Topic videoMapped
Differentiating Inverse Trigonometric Functions (3 of 6: Examples + graphing the derivative)
Classroom-ready explain of rates of change, functions. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Rates of change · Functions
- Topic videoMapped
Differentiating Inverse Trigonometric Functions (5 of 6: Graphing inverse sine derivative)
Classroom-ready explain of rates of change, functions. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Rates of change · Functions
- Topic videoMapped
Differentiating Inverse Trigonometric Functions (6 of 6: Cosine)
Classroom-ready explain of graphs, functions. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Graphs · Functions
- Topic videoMapped
Dot Product (1 of 2: Geometric interpretation)
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Vectors
- Topic videoMapped
Dot Product (2 of 2: Extending into 3D)
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
Eddie Woo · 0862, 0580, 0607 · Algebra · Vectors
- Topic videoSuggested
Dot products and duality | Chapter 9, Essence of linear algebra
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Vectors
- Topic videoSuggested
Eigenvectors and eigenvalues | Chapter 14, Essence of linear algebra
Classroom-ready explain of vectors. Use when teaching this topic in Lower Secondary / IGCSE.
3Blue1Brown · 0580, 0606, 0607, 9709, 0862 · Algebra · Vectors