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JerryFrog's Shop

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I have 11 yrs experience teaching Maths and Physics for CAIE & EdexceI GCSE and AS/A2. The resources are mostly animated powerpoints that cover one complete chapter, plus a few crossword puzzles and even fewer articles on ad-hoc topics.

I have 11 yrs experience teaching Maths and Physics for CAIE & EdexceI GCSE and AS/A2. The resources are mostly animated powerpoints that cover one complete chapter, plus a few crossword puzzles and even fewer articles on ad-hoc topics.
IGCSE Radioactivity
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IGCSE Radioactivity

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IGCSE Radioactivity, animated powerpoint. Unstable nuclei, alpha/beta/gamma decay, decay equations, half-life, Ba-137m experiment, radioisotope uses, ionisation smoke detector, carbon-dating, background radiation, harmful effects of radiation, safety precautions. 34 slides.
IGCSE Trigonometry
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IGCSE Trigonometry

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IGCSE Trigonometry animated powerpoint. Reviewing angle and triangle basics including the Pythagoras theorem in two and three dimensions. Defining the sine, cosine and tangent functions, using them to find side-lengths and angles. Deriving the sine and cosine rules and using them to find distances and bearings on maps. Exploring the shape of the sine, cosine and tangent functions. (17 slides.)
Force & Pressure
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Force & Pressure

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IGCSE Force & Pressure, animated powerpoint. Force and pressure in a solid, liquid and a gas. ‘Head’ of pressure, and transmission of pressure by a fluid. Measuring pressure with a barometer and a manometer. Boyle’s Law and scuba diving. 22 slides.
IGCSE Introduction to Calculus
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IGCSE Introduction to Calculus

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IGCSE Introduction to Calculus animated powerpoint. The gradient ratio as rise-over-run and the limit for a tangent to a curve as the ‘derivative’. Examples of the limit/derivative for straight line, a parabola and a cubic. The use of the derivative to find ‘turning points’, and the distinction between a local maximum and a local minimum. 15 slides.
IGCSE Physics - Waves Intro
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IGCSE Physics - Waves Intro

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IGCSE Physics - Waves Introduction, covering the classification and descriptive terms for waves. Introducing transverse waves (waves on a string, light waves), longitudinal waves (sound waves) and rotary waves (ocean waves). Introducing the wave speed formula, standing waves, wave interference, the rules for reflection and refraction, diffraction and the Doppler effect. (16 slides.)
Factors, Prime Factors, HCF & LCM
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Factors, Prime Factors, HCF & LCM

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Factors, Prime Factors, HCF & LCM animated powerpoint. Defining factors and prime factors. Finding prime factors using divisibility rules and using a Venn diagram to find the highest common factor and lowest common multiple of a pair and a triplet of numbers. Finding prime numbers up to 100 in under 10 seconds. (6 slides.)
IGCSE Physics - Electromagnetism
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IGCSE Physics - Electromagnetism

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IGCSE Physics - Electromagnetism. Electrons in motion create magnetic fields, with a relationship between current and field directions given by the ‘corkscrew’ rule. Introducing solenoid electromagnets. Basics of d.c. electric motors and Fleming’s Left Hand (motor) rule for the FBI directions (force (F), field (B) and current (I)). Basics of electric generators and Fleming’s Right Hand (generator) rule.
IGCSE Maths - Quadratics
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IGCSE Maths - Quadratics

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IGCSE Maths - Quadratics (Notes). Exploring the effect(s) of each coefficient on the shape of the parabola; use the Geogebra link to explore for yourself. Finding the coordinates for the turning point. Factorising a quadratic expression by inspection, completing the square, using the quadratic equation to obtain the roots. The discriminant of the quadratic equation and imaginary roots. (22 pages, 10 diagrams & 35 examples.)
IGCSE Solar System
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IGCSE Solar System

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IGCSE Solar System animated powerpoint. Distinguishing between the terrestrials, asteroids, gas giants, ice giants, comets and meteoroids. Planetary orbital data. Mass and radius vs gravitational field strength. Gravitational force and orbital speed. 22 slides.
The Chernobyl Disaster of April 1986
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The Chernobyl Disaster of April 1986

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The Chernobyl nuclear powerplant disaster of April 1986. Reactor construction & design, and control rod flaws. The planned power-down & start of the test, the power-down overshoot and xenon poisoning that led to the power surge and explosion. The alarm bells in Europe. The fall-out, site containment, mass evacuation, prevention of a possible follow-on corium meltdown event, and clean-up operation by the ‘liquidators’. The 1986 ‘sarcophogus’ and the 2010 ‘new safe confinement’ arch. 12 pages (incl. 5 maps, 6 schematic diagrams, 10 contemporary and 5 other photos).
IGCSE Atomic Structure
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IGCSE Atomic Structure

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IGCSE Atomic Structure, animated powerpoint. Electrons, protons & neutrons. Introducing Isotopes, Atomic weight, the Billiard Ball model, the Plum pudding model, the Gold Foil experiments, the Nuclear model, the Electron Shell model & electron configuration. 22 slides.
IGCSE Optical Fibres
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IGCSE Optical Fibres

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IGCSE Optical Fibres. Animated powerpoint covering the benefits of fibre optics over copper wire, basic construction and network infrastructure. 11 slides.
IGCSE Physics - Line of Force and Motion
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IGCSE Physics - Line of Force and Motion

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IGCSE Physics - Line of Force and Motion. Animated powerpoint, introducing torque/moment, the lever, centre of mass and centre of gravity, Fosbury flop, Earth-Moon barycentre, conditions for equilibrium, balance and stability, tipping angle, boat buoyancy, car rolling and pitching, fork-lift trucks and cranes ! 33 slides.
IGCSE Electricity & Simple Circuits
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IGCSE Electricity & Simple Circuits

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Electrostatics, voltage and current, dangers and protection for devices and humans, measuring voltage, current, power and energy, series and parallel circuit resistance, introducing variable resistors, NTC thermistors, LDRs, diodes, capacitors, relays, transformers, rectifiers and inverters.
Multiplication of Two-digit Numbers
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Multiplication of Two-digit Numbers

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Multiplication of Two-digit Numbers. Animated powerpoint covering the ‘area method’, the ‘let’s try in our head’ method, + the multiples of 5 short-cut. 3 slides.
The Hubble Expansion
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The Hubble Expansion

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Summary of the Hubble Expansion and the Hubble-Lamaitre Law of linear proportionality between recessional velocity and distance. The predicted collision between the Andromeda and Milky Way galaxies. The predicted timetable for the Sun’s transition to red and white dwarf status and impact for Earth. 2 sides.
CAIE A2 9709 Maths Integration I
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CAIE A2 9709 Maths Integration I

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CAIE A2 9709 Maths Integration I. Animated powerpoint. Integration as area, basic rules (incl. 6 trig), numerical integration, reverse chain rule (substitution). 16 slides.