Lab
See the idea. Put it to the test.
956 practicals from Kindergarten to Year 12, in 9 subjects. A practical gives the idea, what you need, the steps, what you should see and a safety card. A teacher-led practical gives the idea and its hazards; its method is for tutors on the learning platform.
Review
Reviewed before publication (owner’s confirmation, 24 September 2026). That covers every practical here, and a practical’s page lists the sources its author read.
A safety card on every page
The risk, who supervises and the hazards. The 38 teacher-led practicals show their idea and hazards here; their materials, steps and sources, and any result, control or note that states a number or an amount, are for tutors and administrators on the learning platform.
School laboratory, not for home
207 practicals are medium or high risk. Each says so on its page: In a school laboratory, with a teacher supervising, under the school's risk assessment. Not for home.
Curriculum references
Each practical lists the NSW syllabus outcomes and Australian Curriculum v9 codes it supports. They are references, not a verified or complete curriculum alignment.
Find a practical
7 practicals
Mathematics 7–10 · Mathematics · Probability
Drawing pins: a chance experiment with no theoretical answer
When the outcomes of a trial are not equally likely, the only way to estimate a probability is from the relative frequency of many trials, and the estimate steadies as trials accumulate.
PracticalLow riskRolling one die: relative frequency settles towards one sixth
The relative frequency of a face on a fair die wanders in a short run and settles towards the theoretical probability of 1/6 as the number of rolls grows, and the complement (not a six) settles towards 5/6.
Practical, model not builtLow riskFifty coin tosses: real randomness has long runs
Genuine random sequences contain longer runs of the same outcome than people expect, so the length of the longest run separates real tosses from invented ones.
Practical, model not builtLow riskSum of two dice: 36 equally likely pairs, 11 unequal totals
A two-stage experiment has a sample space of ordered pairs; counting the pairs that give each total explains why 7 is the most frequent sum and 2 and 12 the rarest.
Practical, model not builtLow riskTwo draws from a bag: with and without replacement, tree diagram against 100 trials
Whether the first marble goes back changes the probabilities on the second branch of the tree, and the difference shows up in the relative frequencies of a hundred real draws.
Practical, model not builtLow riskMonty Hall with three cups: switching wins two times in three
When the host knows where the prize is and always reveals an empty cup, switching wins whenever the first pick was wrong, which is two times in three, and repeated trials make that visible against intuition.
Practical, model not builtLow riskTwo-way tables from a class survey: conditional probability in both directions
A two-way table of two categorical variables gives conditional probabilities by reading along a row or down a column, and P(A given B) is not P(B given A).
Practical, model not builtLow risk
For tutors and administrators
The materials and steps of every teacher-led practical are on the learning platform, with the safety card first. Sign in with a tutor or administrator account to read them.