AI HL

Applications & Interpretation · HL

Master modelling, technology and interpretation with purpose.

A full AI HL course that makes the technology-heavy syllabus feel coherent, with emphasis on modelling, interpretation and communication.

What you’ll learn

Understand the method and know when to use it.

The goal is not simply to watch more videos. It is to make unfamiliar IB questions feel more manageable because the underlying mathematics is clear.

  • 01Choose and apply appropriate mathematical models
  • 02Interpret calculator output accurately
  • 03Communicate conclusions in IB-ready language
  • 04Connect topics across extended questions

Full curriculum

See exactly what is covered.

The curriculum is structured directly from the complete course syllabus. Open any topic to see its lesson sequence.

01Number and algebra37 lessons
  1. 1.1Scientific notation
  2. 1.2.1Arithmetic sequences and series
  3. 1.2.2Sigma notation
  4. 1.3Geometric sequences and series
  5. 1.4.1Compound interest
  6. 1.4.2Depreciation
  7. 1.4.3Inflation
  8. 1.5.1Laws of exponents
  9. 1.5.2Introduction to logs
  10. 1.5.3The number e
  11. 1.6.1Rounding
  12. 1.6.2Upper and lower bounds
  13. 1.6.3Percentage error
  14. 1.7.1Loans
  15. 1.7.2Annuities
  16. 1.8.1System of linear equations
  17. 1.8.2Polynomial equations
  18. 1.9.1Laws of logarithms
  19. 1.9.2. Change of Base
  20. 1.10More Exponents
  21. 1.11Sum of an infinite geometric series
  22. 1.12.1Complex numbers introduction
  23. 1.12.2Operations with complex numbers
  24. 1.12.3Complex solutions to polynomial equations
  25. 1.13.1Modulus-argument form
  26. 1.13.2Euler form
  27. 1.13.3Frequency and phase
  28. 1.13.4Geometric interpretation
  29. 1.14.1Introduction to matrices
  30. 1.14.2Algebra of matrices
  31. 1.14.3Multiplication of matrices
  32. 1.14.4Identity and zero matrices
  33. 1.14.5Properties of matrices
  34. 1.14.6Determinant and Inverse
  35. 1.14.7System of linear equations
  36. 1.15.1Eigenvalues and eigenvectors
  37. 1.15.2Powers of matrices
02Functions29 lessons
  1. 2.1.1Gradient of a line
  2. 2.1.2Equation of a straight line
  3. 2.1.3Parallel and perpendicular lines
  4. 2.2.1Functions introduction
  5. 2.2.2Evaluating functions
  6. 2.2.3Inverse functions
  7. 2.3Sketching functions
  8. 2.4.1Features of graphs
  9. 2.4.2Asymptotes
  10. 2.5.1Linear modelling
  11. 2.5.2Quadratic functions
  12. 2.5.3Quadratic modelling
  13. 2.5.4Exponential modelling
  14. 2.5.5Direct and inverse variation
  15. 2.5.6Cubic modelling
  16. 2.5.7Sinusoidal graphs
  17. 2.5.8Creating a sinusoidal model
  18. 2.6Finding parameters of a model
  19. 2.7.1Composite functions
  20. 2.7.2Finding the inverse functions
  21. 2.8.1Transformations
  22. 2.8.2Composite transformations
  23. 2.9.1Half life
  24. 2.9.2Natural logarithmic modelling
  25. 2.9.3Sinusoidal modelling extension
  26. 2.9.4Logistic modelling
  27. 2.9.5Piecewise models
  28. 2.10.1Scaling using logs
  29. 2.10.2log log graphs
03Geometry and trigonometry57 lessons
  1. 3.1.1Midpoint of a line segment
  2. 3.1.2Distance between 2 points
  3. 3.1.3Volume and surface area
  4. 3.1.4Trigonometry in 3d
  5. 3.2.1Pythagoras’ theorem
  6. 3.2.2Soh cah toa
  7. 3.2.3Sine rule
  8. 3.2.4Cosine rule
  9. 3.2.5Area of a triangle
  10. 3.3.1Bearings
  11. 3.3.2Angles of elevation and depression
  12. 3.4Arcs and sectors
  13. 3.5Perpendicular bisectors
  14. 3.6.1Voronoi diagram intro
  15. 3.6.2Voronoi examples
  16. 3.7.1Introduction ro radians
  17. 3.7.2Arcs and sectors
  18. 3.8.1Mr. Flynn's exact triangles
  19. 3.8.2Unit circle
  20. 3.8.3The CAST diagram
  21. 3.8.4Graphs of sin, cos and tan
  22. 3.8.5Sine ule ambiguous case
  23. 3.8.6Trig identities
  24. 3.8.7Solving trig equations
  25. 3.9.1Matrix transformations (intro and stretches)
  26. 3.9.2Translations
  27. 3.9.3Enlargements
  28. 3.9.4Rotations
  29. 3.9.5Reflections
  30. 3.9.6Composite transformations
  31. 3.9.7Geometric interpretation of determinant
  32. 3.10.1Introduction to vectors
  33. 3.10.2Operations with vectors
  34. 3.10.3Magnitude and unit vectrs
  35. 3.11Vector equation of a line
  36. 3.12.1Vectors and kinematics
  37. 3.12.2Motion with variable velocity
  38. 3.13.1Scalar product and angle between vectors
  39. 3.13.2Angle between two lines
  40. 3.13.3Vector product
  41. 3.13.4Areas using the vector product
  42. 3.13.5Components of vectors
  43. 3.14.1Graph theory introduction
  44. 3.15.1Adjaceny matrices
  45. 3.15.2Weighted adjacency tables
  46. 3.15.3Walks
  47. 3.16.1. Graph routes
  48. 3.16.2Kruskal's algorithm
  49. 3.16.3Prim's algorithm
  50. 3.16.4Prim's algorithm with adjacency table
  51. 3.16.5Eulerian graphs
  52. 3.16.6Chinese postman problem
  53. 3.16.7Hamiltonian graphs
  54. 3.16.8Travelling salesman problem
  55. 3.16.9TSP practical problems
  56. 3.16.10Nearest neighbour algorithm
  57. 3.16.11Deleted vertex algorithm
04Statistics and probability53 lessons
  1. 4.1.1. Discrete v continuous data
  2. 4.1.2Sampling techniques
  3. 4.2.1. Histograms and cumulative frequency curves
  4. 4.2.2box and whisker diagrams
  5. 4.2.3interpreting box plots
  6. 4.2.4Outliers
  7. 4.3.1Averages and spread
  8. 4.3.2Frequency tables
  9. 4.3.3Constant changes in data
  10. 4.3.4Variance and standard deviation by hand
  11. 4.4Linear regression and correlation
  12. 4.5Probability formulae
  13. 4.6.1Venn diagrams
  14. 4.6.2Tree diagrams
  15. 4.7Discrete random variables
  16. 4.8Binomial distribution
  17. 4.9Normal distribution
  18. 4.10Spearman’s rank correlation coefficient
  19. 4.11.1Chi squared intro
  20. 4.11.2Chi squared test for independence
  21. 4.11.3Chi squared goodness of fit
  22. 4.11.4T-test
  23. 4.12.1Surveys and questionnaires
  24. 4.12.2Reliability v validility
  25. 4.12.3Chi squared (categorising data)
  26. 4.12.4Chi squared (degrees of freedom)
  27. 4.13.1Regression with non-linear functions
  28. 4.13.2Sum of square residuals
  29. 4.13.3R squared
  30. 4.14.1Linear transformations of X
  31. 4.14.2Linear combinations of n random variables.
  32. 4.14.3Unbiased estimates for mean and variance
  33. 4.14.4Unbiased estimates example questions
  34. 4.15.1Linear combination of n independent normal random variables
  35. 4.15.2Normal distribution sampling
  36. 4.15.3Central limit theorem
  37. 4.16.1Confidence intervals (known variance)
  38. 4.16.2Confidence intervals (unknown variance)
  39. 4.17Poisson distribution
  40. 4.18.1Z-test one tailed
  41. 4.18.2Z-test two tailed
  42. 4.18.3T-test
  43. 4.18.4Matched pairs
  44. 4.18.5Testing for populations proportion
  45. 4.18.6Test for mean using Poisson distribution
  46. 4.18.7Testing for correllation
  47. 4.18.8Type 1 and 2 errors
  48. 4.18.9Normal errors
  49. 4.18.10Poisson errors
  50. 4.18.11Binomial errors
  51. 4.19.1Markov chains
  52. 4.19.2Transition matrices
  53. 4.19.3Steady state and long term probabilities
05Calculus50 lessons
  1. 5.1.1Introduction to differentiation
  2. 5.1.2Introduction to limits
  3. 5.2Increasing and decreasing functions
  4. 5.3.1Differentiation power rule
  5. 5.3.2Derivative at a point
  6. 5.4Tangents and normals
  7. 5.5.1Integration (power rule)
  8. 5.5.2Finding
  9. 5.5.3Area under the curve
  10. 5.6Stationary (max/min) points
  11. 5.7Optimization
  12. 5.8Trapezoidal rule
  13. 5.9.1Differentiating trigonometric functions,
  14. 5.9.2Differentiating where n is rational
  15. 5.9.3Chain Rule
  16. 5.9.4Product Rule
  17. 5.9.5Quotient rule
  18. 5.9.6Related rates of change
  19. 5.10.1Second derivative
  20. 5.10.2Relationship between graphs and derivatives
  21. 5.10.3Classifying stationary points
  22. 5.10.4Points of inflexion
  23. 5.11.1Integration of where n is rational
  24. 5.11.2Integrating trig
  25. 5.11.3Integrating
  26. 5.11.4Inverse chain rule
  27. 5.11.5Integration by substitution
  28. 5.12.1Area between curve and x axis
  29. 5.12.2Area between curve and y axis
  30. 5.12.3Volume of revolution about x axis
  31. 5.12.4Volume of revolution about y axis
  32. 5.13.1Kinematics
  33. 5.13.2Kinematics 2
  34. 5.14.1Setting up differential equation
  35. 5.14.2Solving by separation of variables
  36. 5.15Slope field and their diagrams
  37. 5.16.1Euler's method
  38. 5.16.2Euler's method example
  39. 5.16.3Euler's method for coupled systems
  40. 5.17.1Phase portraits intro
  41. 5.17.2Solutions of coupled differential equations (p1)
  42. 5.17.3Solutions of coupled differential equations (p2 and saddle)
  43. 5.17.4Sketching phase portraits introduction
  44. 5.17.5Sketching phase portraits (source)
  45. 5.17.6Sketching phase portraits (sink)
  46. 5.17.7Sketching phase portraits (spiral sink)
  47. 5.17.8Sketching phase portraits (spiral source)
  48. 5.17.9Sketching phase portraits (centre)
  49. 5.18.1Second order differential equations (Euler's method)
  50. 5.18.2Second order differetnial equations (exact solutions)

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Past-paper solutions

Worked solutions that show how to approach IB Mathematics questions and communicate the method clearly.