Themed maths: seasonal lessons for IB Maths
Ready-to-teach lesson packs for the days in the school year that classes look forward to. Each pack has a 5-minute starter, a 30–40 minute main activity, an extension, suggested timings, full worked answers and a printable student sheet. Every question is original and every answer is checked by computer.
Level: IB Maths SL and HL (AA and AI). Free to use and print.
Next up
Ada Lovelace Day
Algorithms, loops and sequences: trace a step-by-step method, then meet the Bernoulli numbers.
Open the lesson pack → 31 OctoberIB SL / HLHalloween
Zombie outbreaks, pumpkin volumes, trick-or-treat probability and a haunted-house coordinate maze.
Open the lesson pack →Through the year
October
Ada Lovelace Day
Algorithms, loops and sequences: trace a step-by-step method, then meet the Bernoulli numbers.
Open the lesson pack → 31 OctoberIB SL / HLHalloween
Zombie outbreaks, pumpkin volumes, trick-or-treat probability and a haunted-house coordinate maze.
Open the lesson pack →November
December
Christmaths advent calendar
One original festive puzzle a day from 1 to 24 December, with a class leaderboard.
Open the advent calendar → 22 DecemberIB SL / HLNational Mathematics Day
Ramanujan’s birthday: the number 1729, partitions and a magic square built from his date of birth.
Open the lesson pack →February
e Day
Compound interest, continuous growth and the limit that defines e.
Open the lesson pack → 14 FebruaryIB SL / HLValentine’s Day
Heart curves, cardioids and the probability of a perfect match.
Open the lesson pack → FebruaryIB SL / HLWomen in maths
Mathematician cards: Sophie Germain primes, the curve named after Maria Agnesi and Florence Nightingale’s rose diagrams.
Open the lesson pack →March
July
Any time, or the date varies
Diwali
Rangoli symmetry, rotations and tessellations, and the geometry of a diya.
Open the lesson pack → Date varies each yearIB SL / HLLunar New Year
The 12-year animal cycle as remainders: repeating patterns, LCM and two cycles running together.
Open the lesson pack → Spring termIB SL / HLSpring egg geometry
Ellipses, egg-shaped curves, volumes and similar solids.
Open the lesson pack → Summer termIB SL / HLBig tournament statistics
Made-up tournament data: averages, spread, scatter graphs, correlation and predictions.
Open the lesson pack → Any timeIB SL / HLEclipse geometry
Similar triangles and angular size: why the Moon can just cover the Sun.
Open the lesson pack →How to use a pack
Open the pack, put the starter on the board as students arrive and hand out the student sheet for the main activity. The answers are in a closed ‘For teachers’ section on each page and in a separate answers PDF, so you can project the page without giving them away.
More for lessons: Weekly starters · Free standard lessons · Worksheet builder · Competition maths