This book is designed to help teacher-trainees prepare for the QTS (Qualified Teaching Standards) numeracy test that must now be passed by all entrants to the teaching profession. The author focuses especially on weaknesses in numeracy often observed in adults, and in teacher-trainees in particular. As far as possible, this mathematics is set in the professional context of teaching, drawing on statistics and other data from individual schools, the DfEE and the Qualifications and Curriculum Agency (QCA).Table of Contents: Mental Calculations, Changing Proportions to Percentages Mental Calculations, Changing More Proportions to Percentages Decimals and Percentages Understanding Data Presented in Tables Two-Way Tables for Comparing Two Sets of Data Bar Charts and Frequency Tables for Discrete Data Bar Charts for Grouped Discrete Data Finding a Fraction of a Quantity Fractions to Decimals and Vice Versa Expressing a Percentage in Fraction Notation The Commutative Law The Associative Law The Distributive Law Using a Four-Function Calculator, Precedence of Operators Using a Four-Function Calculator for Money Calculations Using the Memory on a Four-Function Calculator Using a Calculator to Express a Proportion as a Percentage Rounding Answers Very Large and Very Small Numbers Mental Calculators, Multiplication Strategies Mental Calculators, Division Strategies Mental Calculators, Finding a Percentage of a Quantity Finding a Percentage of a Quantity Using a Calculator Adding and Subtracting Decimals Mental Calculators, Adding Lists More Multiplications Strategies More Division Strategies Multiplication with Decimals Division with Decimals Using Approximations to Check Your Answers Mental Calculations, Time Knowledge of Metric Units of Length and Distance Knowledge of Metric Units of Area and Solid Volume Knowledge of Other Metric Units Mental Calculations, Money Simplifying Ratios Sharing a Quantity in a Given Ratio Increasing or Decreasing by a Percentage Expressing an Increase or Decrease as a Percentage Finding the Original Value after a Percentage Increase or Decrease Calculating Mean Modes Medians Upper and Lower Quartiles Measures of Spread, Range and Inter-quartile Range Box-and-Whisker Diagrams More Box-and-Whisker Diagrams Percentiles Reading Scatter Graphs Scatter Graphs and Correlation Conversion Graphs Interpreting Pie Charts Substituting into Formulas Weighted Means Combining Means or Percentages from Two or More Sets of Data Understanding Cumulative Frequency Graphs Cumulative Frequency Graphs, Finding the Median and Quartiles Line Graphs for Representing Data over Time Bar Charts for Comparing Two Sets of Data The Notion of Value-Added Interpreting Value-added Graphs