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39 lessons shared
Solving Quadratic Equations
AQA GCSE Maths | Higher & Foundation tiers Learning objective: solve quadratic equations by factorising, using the quadratic formula, and by completing the square.
9 slides

Solving Quadratic Equations

By BA Library

Mathematics · GCSE · AQA

Factorising, the quadratic formula, and completing the square.

Not used yet
two intersecting straight lines on graph paper
Simultaneous Equations
AQA GCSE Maths: find the one pair of values (x,y)(x, y) that satisfies two equations at the same time
9 slides

Simultaneous Equations

By BA Library

Mathematics · GCSE · AQA

Solving simultaneous equations by elimination and substitution.

Not used yet
Same Expression, Two Directions
How can 6x+126x + 12 and 6(x+2)6(x + 2) be the same value when they look so different?
two identical roads splitting apart
9 slides

Expanding and Factorising Expressions

By BA Library

Mathematics · GCSE · AQA

Expanding single and double brackets, and factorising into brackets.

Not used yet
Solving Linear Equations
AQA GCSE Maths | Find the unknown value | Balance both sides
9 slides

Solving Linear Equations

By BA Library

Mathematics · GCSE · AQA

Solving one and two-step linear equations, including those with brackets and fractions.

Not used yet
molten steel pouring in foundry
Metallic Bonding and Properties of Metals
How a sea of delocalised electrons holds a giant metallic lattice together – and explains why metals conduct, bend and melt
9 slides

Metallic Bonding and Properties of Metals

By BA Library

Chemistry · GCSE · AQA

The structure of metals, the sea of delocalised electrons, and why metals conduct.

Not used yet
Salt's Hidden Strength
Why do two dangerous elements combine to make a safe, strong crystal?
sodium metal reacting in water beaker
10 slides

Ionic Bonding and Ionic Compounds

By BA Library

Chemistry · GCSE · AQA

How ions form, ionic lattices, and the properties of ionic compounds.

Not used yet
Electronic Structure and Electron Configuration
AQA GCSE Chemistry 4.1.1.7 — energy levels, electron shells and predicting reactivity from configuration
9 slides

Electronic Structure and Electron Configuration

By BA Library

Chemistry · GCSE · AQA

Electron shells, energy levels, and writing electronic configurations.

Not used yet
The Table That Predicts
What is inside an atom that makes the periodic table able to predict elements that no one has even discovered yet?
periodic table chart hanging on classroom wall
9 slides

Atomic Structure and the Periodic Table (AQA GCSE Chemistry)

By BA Library

Chemistry · GCSE · AQA

Protons, neutrons and electrons, atomic number, mass number, and how the periodic table is arranged.

Not used yet
scientist viewing cells under laboratory microscope
Stem Cells and Differentiation
One cell, many possible futures – how unspecialised cells become the specialised cells that build an organism (AQA GCSE Biology 4.1.2.3)
9 slides

Stem Cells and Differentiation

By BA Library

Biology · GCSE · AQA

Embryonic and adult stem cells, therapeutic uses, and the ethical debate.

Not used yet
fluorescent stained cells dividing under microscope
Mitosis and the Cell Cycle
AQA GCSE Biology 4.1.2 – how cells grow, divide and produce genetically identical copies for growth and repair
9 slides

Mitosis and the Cell Cycle

By BA Library

Biology · GCSE · AQA

The stages of the cell cycle and mitosis, and why cell division matters.

Not used yet
root hair cells plant root macro soil
Cell Transport: Diffusion, Osmosis and Active Transport
How substances move into and out of cells — three processes compared AQA GCSE Biology 4.1.3.1–4.1.3.3
8 slides

Cell Transport: Diffusion, Osmosis and Active Transport

By BA Library

Biology · GCSE · AQA

The three mechanisms of movement across cell membranes, with worked examples.

Not used yet
microscope view of plant cells
Specialised Cells and Their Functions
One cell, one job – how structure links to function | AQA GCSE Biology 4.1.1.3 & 4.1.1.4
8 slides

Specialised Cells and Their Functions

By BA Library

Biology · GCSE · AQA

How cells differentiate and specialise, with examples from across the body.

Not used yet
Key words: element, compound, ore
Element
Element
A substance made of only ONE type of atom – it cannot be broken down chemically. Metals like iron and copper are elements.
Compound
Compound
A substance made of two or more elements chemically joined in fixed proportions. Example: iron oxide, found in rocks.
Ore
Ore
A rock that contains enough metal (in a compound) to make extraction worthwhile. Extracting the metal needs a chemical reaction.
13 slides

The Reactivity Series: How Metals React and How We Extract Them

By Isabella Lassman

Chemistry · GCSE · AQA

Not used yet