DexSTEM Interactive Tools

No-login · works offline · nothing collected · built for real classrooms
Try the free tools right here — just click one. 🔒 The rest are listed for reference only: each one's link and access code are in your TpT download (enter the code once and it's remembered on that device).
▶ Free to use

Classroom Timer

Big full-screen countdown timer for the projector

▶ Free to use

Spinner Wheel

Ad-free random name / prize picker wheel

▶ Free to use

Natural Selection (FREE)

Free dig-in natural-selection simulation — self-checking, works offline

▶ Free to use

Periodic Table (FREE)

Free periodic-table simulation — self-checking, works offline

▶ Free to use

Moon Phases (FREE)

Free moon-phases simulation — drag the orbit, self-checking, works offline

🔒 In your TpT download

Spot the AI

Human-vs-AI detection game with hallucination-spotting

🔒 In your TpT download

Prompt Practice Sandbox

Prompt-writing trainer with an instant rubric

🔒 In your TpT download

Train the Robot

Teach a real classifier, then watch bias emerge

🔒 In your TpT download

Mac Shortcuts Trainer

Command not Control — practise the real key combination, with a memory hook for each

🔒 In your TpT download

Where Did My Window Go?

Trackpad gestures and window rescue, practised in a simulation

🔒 In your TpT download

Where Did My File Go?

A simulated Finder — saving, searching and the Downloads trap

🔒 In your TpT download

Every Mac Has This

Try the built-in reading and accessibility tools, then set them up for real

🔒 In your TpT download

Mark It On Screen

Paperless marking in Preview — practise, then a workflow for a class set of 30

🔒 In your TpT download

What You Already Have

The apps already on every Mac, what they replace, and which waste a lesson

🔒 In your TpT download

Say It, Don't Write It

Spoken feedback on a Mac — the safeguarding control first, then the speed

🔒 In your TpT download

Who Can Actually See This?

What a colleague can still reach in a shared gradebook — a working model, not a warning

🔒 In your TpT download

Mac Skills Passport

Five stages, each earned, each producing a code the teacher can verify

🔒 In your TpT download

Running the Room

Classroom management on managed Apple devices — including whether you can use it

🔒 In your TpT download

Phone Free

Two-tap phone incident log, patterns, scripts and a printable record

🔒 In your TpT download

Report Comment Writer

Build a whole class of report comments from banks you control — no AI

🔒 In your TpT download

Learning Goal Competency Tracker

Standards-based tracking and printable individual reports, without a platform

🔒 In your TpT download

Goals to Grades

Turn learning-goal evidence into a report grade you can defend — imports the tracker's CSV

🔒 In your TpT download

Pixel Miner

Dig-to-reveal mystery picture practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Teacher Check

Decode any student's Pixel Miner completion code

🔒 In your TpT download

Pixel Miner — Addition & Subtraction

Dig-to-reveal addition & subtraction practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Division

Dig-to-reveal division practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Fractions

Dig-to-reveal fractions practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Integers

Dig-to-reveal integers practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Long Division

Dig-to-reveal long division practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Multi-Digit Multiplication

Dig-to-reveal multi-digit multiplication practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Multiplication

Dig-to-reveal multiplication practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Order of Operations

Dig-to-reveal order of operations practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Percent of a Number

Dig-to-reveal percent-of-a-number practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Decimals

Dig-to-reveal decimal addition & subtraction practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Rounding

Dig-to-reveal rounding practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Place Value

Dig-to-reveal place-value practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — Exponents & Roots

Dig-to-reveal exponents & square-root practice with a verifiable completion code

🔒 In your TpT download

Pixel Miner — One-Step Equations

Dig-to-reveal one-step-equation practice with a verifiable completion code

🔒 In your TpT download

Ore Tycoon — Maths Tycoon

Answers earn coins, coins buy machines, machines multiply every answer — with a prestige reset

🔒 In your TpT download

Odd One Out — Class Deduction

Whole-class deduction on the projector — one card differs, the class works out whose

🔒 In your TpT download

Odd One Out — Teacher Check

Decode a class's Odd One Out completion code

🔒 In your TpT download

Verse Machine — Class Rap Battle

Two teams build a rhyming line from a word bank, the robots perform it, the class decides

🔒 In your TpT download

Verse Machine Juniors

The same rap battle with short, concrete words a younger class can read unaided

🔒 In your TpT download

Verse Machine — Science Words

The rap battle with every rhyme family built from science vocabulary

🔒 In your TpT download

Verse Machine — Ambitious Words

The rap battle built from Tier-2 academic vocabulary

🔒 In your TpT download

Ground Station — Build the SUVAT Equations

Four missions deriving the equations of motion from one velocity-time graph

🔒 In your TpT download

The Attendance Letter

Personalised absence letters built on the trials that actually reduced absenteeism

🔒 In your TpT download

Four to One — Praise Counter

Guess your praise-to-correction ratio, count one lesson, then see the gap

🔒 In your TpT download

The Spacing Schedule

Type your topics and the exam date; it prints the day each one should come back

🔒 In your TpT download

The Fading Sheet

Turns your worked examples into a faded practice sequence, plus the answer key

🔒 In your TpT download

Mixed Practice

Reorders your question sets so no two problems in a row need the same method

🔒 In your TpT download

Find the Mistake

Error-analysis sheets built on the misconceptions the research names

🔒 In your TpT download

Two Ways

One problem, two correct methods side by side, and a better choice that moves

🔒 In your TpT download

What Went Wrong

Diagnostic questions whose wrong answers each name a specific misconception

🔒 In your TpT download

Make It One Sentence

Sentence combining: 42 kernel sets with model answers, graded 4 to 10

🔒 In your TpT download

Find the Mistake: Fractions

Fraction error analysis where every mistake is whole-number bias

🔒 In your TpT download

What Went Wrong: Fractions

Fraction diagnostic questions whose wrong answers each name a misconception

🔒 In your TpT download

The Fading Sheet: Fractions

Five fraction procedures worked in full, then faded a step at a time

🔒 In your TpT download

Two Ways: Fractions

One fraction question, two correct methods, and a quicker one that moves

🔒 In your TpT download

Mixed Practice: Fractions

Fraction questions reordered so no two in a row need the same method

🔒 In your TpT download

Because, But, So

One sentence stem finished three ways: a cause, a complication, a consequence

🔒 In your TpT download

Only Looks Like It

Word parts, plus the words that only look like they use them

🔒 In your TpT download

What Went Wrong: Science

Science questions whose wrong answers are documented misconceptions

🔒 In your TpT download

What Went Wrong: Decimals

Decimal questions that separate longer-is-larger from shorter-is-larger

🔒 In your TpT download

The Induction Map

ECT induction in England: your dates, your entitlements, and no portfolio

🔒 In your TpT download

The Smallest Folder

QTS evidence: four pieces can cover all eight Teachers' Standards

🔒 In your TpT download

QTS Evidence

Index your QTS evidence by filename, see which Standards have nothing behind them, and handle pupil work lawfully

🔒 In your TpT download

QTS Evidence — connect to Drive

Set it up to read your own Google Drive folder: the two script files, with copy buttons, and the exact steps

🔒 In your TpT download

Find the Mistake: Decimals

Decimal and percent error analysis, with the rule behind each slip

🔒 In your TpT download

STILLCOUNT — Live Battle Stage

The hosted robot rap battle: the class joins on their devices and the room decides who wins