Free ICT tools
Small, hands-on tools that show how computers really work. Free for everyone, no account needed, and they work on any phone.
Grades 6 to 11
For the Sri Lankan school ICT syllabus.
Number system converter
Type a number in binary, octal, decimal, hexadecimal or BCD and see it in the others at once, with the working step by step.
Open toolKeyboard to binary
Press a key and watch it turn into the 1s and 0s a computer understands, then appear on screen.
Open toolFile to binary viewer
Open any file, a photo or a text file, and see the bits it is really made of.
Open toolLogic gates
Flip the switches on AND, OR, NOT, NAND and NOR gates and see when the bulb lights up.
Open toolLogic circuit builder
Join gates, switches and bulbs into your own circuit, then check it with a truth table.
Open toolSpreadsheet formulas
Write SUM, AVERAGE, MAX, MIN and COUNT formulas on a marks sheet, then copy them to see what a $ sign does.
Open toolPassword strength tester
Type a password and see how strong it is, which textbook rules it follows and how long a hacker would need to guess it.
Open toolComputer data flow
Watch data, instructions and control signals move between the input device, main memory, the CPU, secondary storage and the output device.
Open toolRelational database
Press Next and watch one big table split into linked tables, with primary keys, foreign keys, relationships and the exam questions on which tables to use.
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Edexcel · Grade 4
For younger pupils. These follow the Year 4 book of Pearson’s Inspire Computing course.
Safe to share?
Sort the cards. Which things are fine to share online, and which should you keep private?
Open toolBiased or fair?
Sort the sentences. Which ones can you check, and which only show what the writer feels?
Open toolSend out the spider
Be a spider program. Follow the links, put its steps in order and see how an index helps a search engine.
Open toolCut the words
Cross words out of a long question and watch the search results get better.
Open toolSearch Lab
Try inverted commas, minus, tilde and define on a made-up web, and compare what each one changes.
Open toolWhich search command?
Read what someone needs to find, then sort the card into the command that will help.
Open toolWebsite detective
Look for clues on made-up web pages. Is each one reliable, or should you check another source?
Open toolCopied or own words?
Compare what a pupil wrote with what a website said. Is it copied, or in their own words?
Open toolUnkind, bullying or cyberbullying?
Does it keep happening? Is it online? Two questions sort every card into the right box.
Open toolWhat happens next?
Choose what happens in a made-up story about cyberbullying, and see how each choice ends.
Open toolSign-up detective
A made-up pupil is filling in a form. Which boxes should stay blank?
Open toolGood interviewer
Get ready to interview someone who was cyberbullied. Which questions and actions are respectful?
Open toolTrim and merge
Close a gap, trim a clip and cut out a mistake on a practice video timeline.
Open toolGreen screen lab
Fix a bad shot one change at a time, and see how green screen layers work.
Open toolTable builder
Add rows and columns, merge and split cells and format a table until it matches the target.
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