Years 7–8 Data & Information

These are free worksheets for the Data and Information strand of the Victorian Curriculum Digital Technologies, Levels 7–8: representing data in binary, acquiring, storing and validating it, analysing and visualising it, using digital tools and sharing content online, managing projects, and protecting privacy.

This page lists the 41 modules written for Years 7–8: 8-bit binary numbers, ASCII and Unicode, image resolution, audio sample rate and file size; absolute cell references, primary keys and building, sorting and filtering a database table; query fields, criteria, sorting and summaries, and predictions from trends; choosing tools, Help and tooltips, keyboard shortcuts, document styles, alt text and file formats; sharing with permissions, comments, version history, publishing responsibly, and planning, tracking and reviewing a team project; and cookies and trackers, photo metadata, app permissions, privacy policies and auditing the data a system collects. Each module includes real practice questions and a full answer key.

Each content description has its own journey below, and these also reuse Years 5–6, Issues in Technology and VCE spreadsheet modules where the topic is the same, so each journey is a complete course. Teachers can assign one content description at a time, with progress tracking, class sprints and badges.

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Representing data with binary — VC2TDI8D01 (8 modules)

8-bit binary numbers and the range 0 to 255 A byte has 8 bits with place values 128 down to 1. Add the place values that are 1s. The smallest number is 0 and the largest is 11111111 = 255, so a byte stores 0 to 255.

Converting a larger decimal number to binary To write a number in 8-bit binary, go from 128 down to 1. If the place value fits in what is left, write 1 and subtract it. If not, write 0. Check by adding the place values.

How many values n bits can store The number of different values n bits can store. Each extra bit doubles it: 1 bit gives 2 values, 2 bits give 4, 3 bits give 8, and 8 bits give 256.

Looking up characters in the ASCII table A standard table that gives every character a number, such as A = 65 and a = 97, so computers can store text as binary. Lowercase codes are 32 more than capitals.

Unicode and emoji A system that gives every character a unique number, including letters from many languages and emoji, so it covers far more than the small ASCII table.

Image resolution The number of pixels in an image, given as width x height (like 1920 x 1080). More pixels give more detail but make a bigger file.

Sample rate and audio quality The number of sound measurements taken each second, in hertz (Hz). CDs use 44,100 Hz. A higher rate gives better quality but makes a bigger file.

Calculating the size of a bitmap image The size of an uncompressed bitmap image in bits. Multiply width by height by the bits used for each pixel, then divide by 8 to get bytes.

Just this content description: the Representing data with binary journey · Add VC2TDI8D01 to a class →

Acquiring, storing and validating data — VC2TDI8D02 (4 modules)

Absolute cell references with $ An absolute cell reference. The $ before the column letter and row number locks the cell, so the reference does not change when the formula is copied. Press F4 to add the $ signs.

Primary key A field whose value is different for every record, such as a student ID or an AutoNumber, so each record can be identified. Names make a poor key because two people can share one.

Creating a database table and entering records Make a new table by adding fields in design view, then type each record into its own row in datasheet view. Save the table so your data is kept.

Sorting and filtering a database table Sort puts records in order by one field, either ascending (A to Z, small to big) or descending. Filter shows only the records that match a chosen value and hides the rest.

Just this content description: the Acquiring, storing and validating data journey · Add VC2TDI8D02 to a class →

Analysing and visualising data — VC2TDI8D03 (5 modules)

Choosing which fields a query shows A query that lists the fields to show. Only Name and Score appear, in that order, so other columns are left out. SELECT * shows every field.

Query criteria with comparison operators A criterion that limits a query to records where the condition is true, so only Score values above 80 are shown. Compare with =, <>, <, >, <=, >=. Text goes in quotes.

Sorting query results Sorts query results by the Score field from highest to lowest. Use ASC for lowest to highest. Add a second field after a comma to sort ties, like ORDER BY Score DESC, Name.

Counting and summarising with a query A query function like COUNT, SUM, AVG, MIN or MAX that looks at many records and gives one answer, such as how many records match or the average of a field.

Making a prediction from a trend Extending a trend past the known data, such as running a trendline forward, to estimate a future value. It is an estimate, not a certainty, and gets less reliable the further ahead you go.

Just this content description: the Analysing and visualising data journey · Add VC2TDI8D03 to a class →

Using digital tools and conventions — VC2TDI8D04 (6 modules)

Choosing a digital tool for a purpose Choose the program whose features suit the job: a word processor for writing, a spreadsheet for numbers, slides for talks, or a drawing tool for pictures.

Exploring an unfamiliar feature using Help and tooltips Hover over a button to read its tooltip, open the Help menu or type your task into the app's search box, then try the feature on a copy of your file so you can undo any mistakes.

Keyboard shortcuts: copy, paste and undo Keyboard shortcuts that copy, paste and undo faster than using menus. Ctrl+X cuts, Ctrl+S saves and Ctrl+F finds. On a Mac, press Cmd instead of Ctrl.

Applying heading and style conventions in a document A built-in style you apply to main headings so they all look the same. Change the style once and every heading updates, keeping fonts consistent across the document.

Adding alt text to images A short written description added to an image so screen readers can read it aloud to people who cannot see it. Right-click the image, choose Alt text, and describe its purpose.

Choosing a file format for sharing content The type of file, such as PDF, PNG, JPG, MP3 or MP4, shown by its ending. Pick the one that suits your content, keeps the file size sensible and works on your audience's device.

Just this content description: the Using digital tools and conventions journey · Add VC2TDI8D04 to a class →

Sharing online and managing projects — VC2TDI8D05 (10 modules)

Sharing a file online with permissions The button you click to choose who can open your file and what they can do: view, comment or edit. You can share by link or invite named people by email, and remove access later.

Collaborating with comments and suggestions A setting where your edits show as proposed changes, not final ones. The file owner can accept or reject each one, and comments can be resolved when finished.

Using version history A list of earlier saved versions of a shared file. It shows who changed what and when, so you can name a version or restore an older one.

Responsible and respectful online sharing Before sharing online, get permission from anyone shown in your photo or video, check who can see it, and use kind, respectful words. Report harmful content.

Choosing where to publish content online A website or service where you publish content. Each one gives a different audience and level of control, so choose one that suits your purpose, audience, privacy needs and school rules.

Breaking a project into tasks A list of small tasks, each with a clear outcome, written in the order they must be done. It breaks a big project into steps you can plan, time and tick off.

Planning a timeline with milestones A checkpoint on a project timeline, such as a due date for a key task, that shows whether your project is on schedule.

100

Tracking task progress A table or board that lists each task with its owner and status (Not started, In progress or Done), so the team can see who is doing what and how the project is going.

101

Roles and responsibilities in a team project Each member of a team project takes a role with agreed jobs, so the work is shared fairly and nothing gets missed.

102

The iterative cycle: create, test, improve Making a version, testing it, getting feedback and improving it, then repeating the cycle until it does its job. Save numbered versions and change one thing at a time.

Just this content description: the Sharing online and managing projects journey · Add VC2TDI8D05 to a class →

Digital footprint and privacy — VC2TDI8D06 (8 modules)

110

Cookies and trackers A small file a website saves in your browser to remember you. Tracking cookies record what you do across different sites, often to show you targeted ads.

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Metadata and location in photos Hidden details stored inside a photo or file, like the time, device and GPS location. It can add to your digital footprint when you share it, so check and remove it first.

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App permissions on a device Settings where each app asks to use your location, camera, microphone or contacts. You can allow or deny each one, or allow only while using the app, and review them any time.

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Reading a privacy policy A document that says what data a service collects, why it collects it, who it shares it with, how long it keeps it and how you can opt out.

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Auditing the data an existing system collects A table that lists each piece of data a system collects, how it is collected (typed in or automatic) and what it is used for. It shows the system's footprint.

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Judging whether collected data is essential Data a system cannot do its purpose without. If the system could still work with it left out, the data is optional and does not need to be collected.

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Reducing the data a form collects Collecting only the data a form really needs. Remove extra questions, mark fields optional and use ranges, like an age range instead of a birth date.

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Managing your own digital footprint Take action to control what is online about you by searching your own name, deleting old posts and unused accounts, and asking others to remove content.

Just this content description: the Digital footprint and privacy journey · Add VC2TDI8D06 to a class →

Printable Years 7–8 Data & Information Crosswords & Word Searches

Built from the key terms of each block of modules, every one with a full answer key. All free printables →

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Crossword: Representing data with binary and Acquiring, storing and validating data (Modules 9–45) 10 clues · 8-bit binary numbers and the range 0 to 255, Converting a larger decimal number to binary, How many values n bits can store, Looking up characters in the ASCII table and more

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Crossword: Acquiring, storing and validating data to Using digital tools and conventions (Modules 47–80) 10 clues · Creating a database table and entering records, Sorting and filtering a database table, Choosing which fields a query shows, Query criteria with comparison operators and more

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Crossword: Using digital tools and conventions and Sharing online and managing projects (Modules 87–99) 10 clues · Applying heading and style conventions in a document, Adding alt text to images, Choosing a file format for sharing content, Sharing a file online with permissions and more

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Crossword: Sharing online and managing projects and Digital footprint and privacy (Modules 100–124) 10 clues · Tracking task progress, Roles and responsibilities in a team project, The iterative cycle: create, test, improve, Cookies and trackers and more

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Word Search: Representing data with binary to Using digital tools and conventions (Modules 9–80) 22 words to find · 8-bit binary numbers and the range 0 to 255, Converting a larger decimal number to binary, How many values n bits can store, Looking up characters in the ASCII table and more

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Word Search: Using digital tools and conventions to Digital footprint and privacy (Modules 87–124) 20 words to find · Applying heading and style conventions in a document, Adding alt text to images, Choosing a file format for sharing content, Sharing a file online with permissions and more

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Frequently Asked Questions

Are these worksheets free?

Yes — every worksheet and its answer key is free to view, download, and print, with no account required to access any individual module.

Do I need an account?

No account is needed to view or print a worksheet. A free teacher account adds extras like assigning modules to a class and tracking progress automatically — it takes under three minutes to set up and doesn't need a credit card.

What year level is this for?

This curriculum is aligned to the Australian Curriculum (ACARA) and Victorian Curriculum, spanning roughly Years 3 to 10 — from first sequencing and variables through to object-oriented programming and advanced data structures. Start wherever matches your class's current level; each module builds on the last.

Can I print them?

Yes — every module has a one-click Print Worksheet button that generates a printable page with the practice questions and a full answer key.

Is this aligned to a curriculum?

Yes — the module sequence is mapped to the Australian Curriculum (ACARA) and Victorian Curriculum, and a class's progress is reported back against those curriculum bands (e.g. ACARA Years 5–6 sequencing and iteration, Years 7–8 functions and data structures), not just a generic difficulty scale.

Can students use this without a teacher?

Yes — students can start any module and practice directly, no class or account required. Joining a teacher's class with a class code adds progress tracking, class badges, and live Sprints, but isn't needed to work through the worksheets or modules solo.

Do I need to know Years 7–8 Data & Information myself to teach this?

No — every module comes with a full worked answer key, and Cloodit tracks who's stuck automatically, so you don't need to solve each exercise yourself before assigning it or be able to debug a student's work line by line.

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