Articles: tag
#Junior secondary
7 articles about Junior secondary.
Learning maths · 8 min read
Keep mixing up area and volume formulas? Group plane and solid formulas to remember them
Area and volume formulas are easy to confuse. It is usually not a memory problem but a failure to sort plane figures and solid figures separately. The common formulas are grouped below, with unit conversion and common mistakes explained, and worked examples showing how to choose a formula, substitute numbers and check the answer.
Learning maths · 11 min read
Common Reasons for Getting Percentage Change Wrong, and the Correct Method (with Compound Change Examples)
Questions on percentage increase and decrease are often answered wrongly, mostly because students identify the wrong "original quantity" or confuse percentage points with percentages. This article explains the formula for percentage change, how to calculate two successive changes, and how primary to Form 6 students and parents can practise, with several worked examples of calculating percentage change, and introduces Sprout Classroom's free maths course.
Study skills · 11 min read
How to handle exam stress: ways to reduce pressure before and during the maths exam
A racing heart and a blank mind before an exam are familiar to many Hong Kong students facing a maths exam. This article sets out ways to reduce pressure in the run-up to the exam and on the day itself, including adjusting your goals, using a timetable, sleep and diet, deep breathing, and when to seek help from a school social worker or a professional if things get serious.
Learning maths · Updated · 4 min read
Solving inequalities: when does the sign flip? Linear, compound "and"/"or" and quadratic inequalities, with examples
The most common mistakes with inequalities are forgetting to flip the sign after multiplying or dividing by a negative number, and mixing up "and" with "or". Following the Education Bureau curriculum documents, this guide covers junior secondary linear inequalities and the senior compound inequalities, quadratic inequalities and linear programming, with worked examples, which parts are non-foundation and where they appear in the HKDSE, plus ways to check and the key terms in Chinese and English.
Learning maths · Updated · 10 min read
How to find the equation of a straight line: point-slope, two-point, slope-intercept and general form, with examples
The equation of a straight line is a compulsory senior secondary maths topic, which the Education Bureau suggests teaching in the first term of Secondary 4. This guide follows the curriculum documents: the distance, mid-point, slope and point-of-division (section) formulas; finding a line from a point and a slope, two points or two intercepts; reading slope and intercepts from the general form; and where two lines meet, with ways to check your answer.
Finding a tutor · 3 min read
How much does a maths tutor cost in Hong Kong? 2026 rates for primary, secondary and DSE
Typical private maths tutoring rates in Hong Kong in 2026: about $100 to $360+ an hour for primary, and about $150 to $650 for senior secondary and DSE. Monthly budgets, hidden costs and ways to save.
Learning maths · 6 min read
Similar triangle reasons and how to write the proof
The three reasons for similar triangles in the Hong Kong syllabus, how to set out the proof line by line, three worked examples and the RHS and SSA traps.