A workbook containing examples and practice questions covering the following topics: Understanding what each symbol means in Y = mx +c Identifying gradients and y-intercepts when shown an equation Identifying y-intercepts when shown a graph Identifying parallel lines Being able to calculate the gradient from a graph Being able to calculate the gradient when given two points Finding the equation of a line when given the gradient and one point Finding the equation of a line when given two points Being able to sketch a linear graph This booklet is suitable for years up to and including GCSE foundation.

A pdf presentation covering all you need to know about AS Chemistry Topic 1: Formulae, Equations and Amounts of Substances. 119 slides of detailed notes, step by step examples, and practice questions with answers. Covers: ionic equations, typical reactions of acids, displacement reactions, precipitation reactions, mass calculations, moles, reacting masses, empirical formula, molecular formula, percentage yield, atom economy, parts per million, and concentration calculations. This presentation was made to follow the Edexcel International A Level specification but is suitable for all exam boards.

A workbook containing examples and practice questions going over surds. The topics covered are: Understanding what a surd is Multiplying surds Dividing surds Adding and subtracting surds Squaring surds Simplifying surds Solving equations containing surds Rationalising the denominator Suitable for GCSE level