Help test Stella & request packs
Teachers, STEM Ambassadors, scientists and parents: review a single 15-minute lesson or a full mission on the spot, request a classroom mission pack, or suggest a new feature.
Three ways to shape Stella
15 minutes to 1 hour
Pick a single lesson or a five-lesson mission below, tell us what is wrong or missing, and choose how you want to be credited (initials + surname, alias, role-only anonymous, or full name).
Slides and worksheets
Tell us which mission or key stage you teach and what classroom materials (slides, lesson plan, printable worksheet) would save you time.
New topics or models
Suggest a curriculum topic, an interactive simulator or a classroom feature you would like us to build next.
Pick a mission or single lesson to inspect
Only have 15 or 20 minutes? You can review a single lesson instead of a whole mission. Open any lesson in a new tab, then select Review this lesson ↓ to send your feedback straight away.
Mission 1 · 11 lessonsBuild your toolkit
The number skills every other mission relies on.
Show 11 lessons
Build your toolkit
The number skills every other mission relies on.
- Step 1 · Key stage 210 minOrder of Operations (BIDMAS)
- Step 2 · Key stage 310 minNegative Numbers
- Step 3 · Key stage 210 minLong Multiplication
- Step 4 · Key stage 210 minFractions and Proportions
- Step 5 · Key stage 215 minCalculating with Fractions
- Step 6 · Key stage 210 minFractions, Decimals and Percentages
- Step 7 · Key stage 315 minRatio and Proportion
- Step 8 · Key stage 212 minArea and Perimeter
- Step 9 · Key stage 215 minVolume of Cubes and Cuboids
- Step 10 · Key stage 315 minPowers and Roots
- Step 11 · Key stage 215 minMeasures and Converting Units
Mission 2 · 6 lessonsGet to orbit
What it takes to leave the ground and stay up.
Show 6 lessons
Get to orbit
What it takes to leave the ground and stay up.
- Step 1 · GCSE15 minConverting Units
- Step 2 · GCSE10 minGears and Gear Ratios
- Step 3 · GCSE15 minMomentum and Collisions
- Step 4 · A-level20 minThermodynamics and the Ideal Gas Law
- Step 5 · A-level15 minGravity and Newton's Law of Gravitation
- Step 6 · A-level20 minOrbits and Hohmann Transfers
Mission 3 · 6 lessonsNavigate
The maths of knowing where you are and where you are heading.
Show 6 lessons
Navigate
The maths of knowing where you are and where you are heading.
- Step 1 · GCSE15 minTrigonometry in Right-Angled Triangles
- Step 2 · GCSE15 minVectors: Magnitude and Direction
- Step 3 · A-level15 minRadians, Arc Length and Sector Area
- Step 4 · A-level20 minMatrices and Rotations
- Step 5 · A-level20 minDifferentiation and Rates of Change
- Step 6 · A-level25 minDifferential Equations
Mission 4 · 4 lessonsTalk to the spacecraft
How a spacecraft is powered, and how it sends word home.
Show 4 lessons
Talk to the spacecraft
How a spacecraft is powered, and how it sends word home.
- Step 1 · GCSE10 minOhm's Law: Voltage, Current and Resistance
- Step 2 · GCSE15 minWaves: Frequency, Wavelength and Speed
- Step 3 · Key stage 315 minBinary Numbers
- Step 4 · GCSE15 minProbability
Mission 5 · 4 lessonsRead the starlight
What light and data tell us about things too far away to visit.
Show 4 lessons
Read the starlight
What light and data tell us about things too far away to visit.
- Step 1 · GCSE15 minRefraction and Snell's Law
- Step 2 · A-level15 minMean, Variance and Standard Deviation
- Step 3 · A-level20 minElectromagnetic Induction and Faraday's Law
- Step 4 · A-level25 minPhotons and Quantum Physics
Submit your review or request
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School and press pack
Want to show Stella Academy to a Head of Science, Head of Maths, STEM club leader or school newsletter? Download our one-page A4 overview sheet or copy the ready-to-send summary below.
Hi — I wanted to share Stella Academy (https://www.stella-academy.org), a free interactive physics and maths site for KS2, KS3, GCSE and A-level. It teaches 31 curriculum-matched topics through five space missions (with interactive models and step-by-step quizzes). They are also looking for physics and maths teachers to review missions and be credited by name, or request classroom mission packs: https://www.stella-academy.org/help