Tools 🧰
Small, practical tools that do one job properly. They run entirely in your browser — nothing is uploaded, nothing is stored and nothing needs an account.
What is in here
Each one is built because we needed it ourselves — for enrolment dates, term planning and the paperwork that comes with both.
No tool matches that. Try another word, or tell us what you need below.
Kids Maths
For kindergarten and primary — pictures first, then practice.
Times Tables
Learn the 1–12 tables with pictures, then practise against the clock.
Open the tool NewPlace Value & Number Line
See hundreds, tens and ones as blocks, and add on a number line.
Open the tool NewClock & Time
Drag the hands, read the time in English and Khmer, and practise.
Open the toolCalculators & Solvers
For homework and revision — the working is shown, not just the answer.
Scientific Calculator
sin, cos, log, powers and roots — the Grade 12 exam calculator.
Open the tool NewFractions & Percent
Fractions with every step shown, plus percent, discounts and VAT.
Open the tool NewEquation Solver
Linear, quadratic, cubic and systems — solved step by step.
Open the tool NewInequality Solver
Every kind of inequality, with the sign table and number line.
Open the tool NewFactors, HCF & LCM
Factor trees, prime factors, and HCF and LCM step by step.
Open the tool NewPercentages & Ratio
Percentage change, reverse percentages, ratio sharing and best buys.
Open the tool NewSequences
Find the nth term of any sequence and see it as a pattern.
Open the tool NewMatrix Calculator
Determinant, inverse, A × B and systems, with every row operation.
Open the toolGraphs, Shapes & Data
See the maths: draw functions, build shapes and present data, with everything measured for you.
Graph Plotter
Plot up to four functions and find roots and turning points.
Open the tool NewShape Builder
Build 2D shapes and 3D solids — angles, area and volume worked out.
Open the tool NewChart Builder
Bar, pie, Venn and more — data charts drawn to scale.
Open the tool NewAngles Lab
Measure angles with a protractor and practise the angle rules.
Open the tool NewStatistics Explorer
Mean, median, mode and range, with tables, stem-and-leaf and box plots.
Open the tool NewCoordinates & Lines
Plot y = mx + c, find gradients and midpoints, and play battleships.
Open the tool NewProbability Simulator
Toss coins, roll dice and spin spinners — experiment against theory.
Open the tool NewUnit Circle
Drag the angle and watch sin, cos and tan and their graphs move.
Open the toolDates & Time
Calendars, date sums, countdowns, ages and a study timer — with Khmer holidays and the lunar date.
Cambodia Holiday Calendar
The Khmer year at a glance, with public holidays and lunar dates.
Open the tool OpenDate Calculator
Add or subtract days, weeks or months, or count days between dates.
Open the tool OpenCountdown
Days, hours and minutes left until exams, holidays or any date.
Open the tool NewAge & Khmer Zodiac
Exact age, next birthday and Khmer zodiac animal year.
Open the tool NewStudy Timer
Focus for 25 minutes, rest for 5 — a simple study timer.
Open the toolEveryday
Small jobs for the family and the office.
Tool created by
Alpha Academy Cambodia
Need something these tools do not do?
Tell us what you find yourself working out by hand. If it is useful to one Cambodian family it is usually useful to a hundred, and we will build it.