SOHCAHTOA: Year 9 Trigonometry Guide
Choose sine, cosine or tangent with confidence. Watch the Year 9 lesson, label a right triangle, follow a worked example and practise with matching study notes.
30 October 2026
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Find maths video lessons, easy explanations, study notes and practical revision ideas for Australian students and parents. Choose a year level or browse a topic below.
Explore the learning guide for your year, with related lessons and links to practice.
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Choose sine, cosine or tangent with confidence. Watch the Year 9 lesson, label a right triangle, follow a worked example and practise with matching study notes.
30 October 2026
Read articleLearn how to keep an equation balanced, undo operations and check your answer. Follow the Year 8 video, work through examples and continue with matching Pi Leo Academy notes.
30 October 2026
Read articleSee why squaring means multiplying a number by itself, then use square roots to find a missing side. Watch the Year 7 lesson, try two questions and open the matching study notes.
30 October 2026
Read articleLearn to place halves, thirds and quarters on a number line, count beyond one whole and avoid the tick-mark trap. Includes a video and practice answers.
30 October 2026
Read articleSee how fractions and decimals describe the same amount using tenths, hundredths and a simple quarter example. Watch, practise and open the matching notes.
30 October 2026
Read articleTry the nine times table finger trick, then connect it to tens and subtraction. Includes a clear example, two practice questions and related study notes.
30 October 2026
Read articleAddition, subtraction, multiplication and division make more sense when you choose a method that fits the numbers. Watch the lesson and practise with answers.
30 October 2026
Read articleUse a timeline to work out elapsed time, read AM and PM correctly and connect everyday times with a 24-hour clock. Includes practice answers and study notes.
30 October 2026
Read articleHelp your child spot number patterns, find missing terms and explain the rule. Watch the lesson, try two questions and open the matching Year 4 notes.
30 October 2026
Read articleTurn worked solutions into something you can use independently. Try a multiplication example, explain each step, then solve a similar question yourself.
30 October 2026
Read articleA wrong answer can point to one step worth revisiting. Use this subtraction example to check the method, correct the working and try a nearby question.
30 October 2026
Read articleUse a maths video as a starting point, then read the notes, try a fresh question and review the steps. Includes a simple fractions-on-a-number-line activity.
30 October 2026
Read articleMake a short practice session easier to organise: choose one idea, draw it, solve a question and finish with a check. Includes an equal-groups example.
30 October 2026
Read articleChoose maths practice that meets your child where they are. Use a simple decimal example to decide when to revisit a foundation or try the next challenge.
30 October 2026
Read articleA simple way to try Pi Leo Academy: choose one free question, talk through the reasoning, then use the matching study notes to decide what comes next.
30 October 2026
Read articleA practical first-session checklist for parents: choose a topic, try a question, read the explanation and find the notes your child needs next.
30 October 2026
Read articleUse clear working to explain your method and check an answer. A companion to Pi Leo Academy’s scratchpad Short, with simple addition examples.
30 October 2026
Read articlePractise dollars, cents and change with a simple shopping example. Watch the Pi Leo Academy Short, check the worked answer and open the study notes.
30 October 2026
Read articleMake multiplication easier to explain with equal groups, arrays and a simple split-apart strategy. Includes practice answers and matching study notes.
30 October 2026
Read articleUse timed maths practice thoughtfully: learn the method first, try a manageable session, then review the reasoning behind each answer.
30 October 2026
Read articleWatch the Pi Leo Academy walkthrough, then follow a simple route from a free example to study notes, topic practice and a plan that suits your family.
30 October 2026
Read articleBuild a calmer study routine with clear goals, recall, worked examples and spaced revision. Includes a flexible 20-minute plan and maths examples.
19 October 2026
Read articleHelp your child make sense of fractions with paper strips, number lines and everyday objects. A parent guide with clear examples and worked answers.
23 September 2026
Read articleA practical guide for students and parents on using NotebookLM to organise notes, create study questions and revise responsibly.
20 May 2026
Read articleA student-friendly guide to using the Feynman Study Method for maths, NAPLAN practice and exam revision, with diagrams and research references.
18 May 2026
Read articleA research-informed guide for students and parents on retrieval practice, spacing, interleaving and feedback.
17 May 2026
Read articleSimple, practical learning tips to help students plan study, remember more, practise regularly and prepare calmly for quizzes, NAPLAN and exams.
11 May 2026
Read articleSimple study tricks that help students remember formulas, steps and problem-solving methods without last-minute cramming.
09 May 2026
Read articleA practical parent guide to making NAPLAN and Selective Entry maths practice calmer, more motivating and easier to repeat at home.
06 May 2026
Read articleKeep preparation calm, purposeful and proportionate to your child's needs. A clear, calm guide to preparing your child for the Victorian Selective Entry exam.
16 April 2026
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