Excellent maths resource site (ALGEBRA) including PowerPoints - quality explanations and progressions. Topics covered -*1*NUMBER THEORY*2*Properties of Real Numbers*1*OPERATIONS*2*Radicals*4*Scientific Notation*4*Fractions*4*Percents*4*Ratios*4*Proportions*4*Direct Variation*4*Exponents (Powers)*4*Factorials*4*Absolute value*4*Multiple Choice Practice*4*Rational and Irrational Numbers*4*Order of Operations*4*Signed Numbers*1*VARIABLES AND EXPRESSIONS*2*Algebraic Representations*4*Addition and Subtraction of Polynomials*4*Multiplication of Polynomials*4*Division of Polynomials*4*Algebraic Fractions and Equations*4*Factoring, Multiple Choice Practice*1*EQUATIONS AND INEQUALITIES*2*Algebraic Translations*4*Linear Equations*4*Systems of Linear Equations (Algebraic and Graphic)*4*Literal Equations*4*Quadratic Equations*4*Linear-Quadratic Systems*4*Exponential Growth and Decay*4*Linear Inequalities (single variable)*4*Graphing Linear Inequalities*4*Systems of Inequalities*4*Multiple Choice Practice*1*PATTERNS, FUNCTIONS AND RELATIONS*2*Set-builder and Interval Notation*4*Working with Sets and Venn Diagrams*4*Definition of Function*1*TRIGONOMETRIC FUNCTIONS*2*Pythagorean Theorem*4*Trigonometric Ratios (using sine, cosine, tangent)*1*COORDINATE GEOMETRY*2*Slopes and Equations of Lines*4*Parallels and Perpendiculars*4*Parabolas*4*Graphing Functions and Examining Coefficients*4*Multiple Choice Practice*1*SHAPES*2*Area and Perimeter of Polygons and Circles*4*Volume and Surface Area of Rectangular Solids and Cylinders*4**1*MEASUREMENT*2*Metric/English Conversions and Rates*4*Error in Measurement*1*STATISTICS WORKING WITH DATA*2*Categorizing Data and Bias*4*Central Tendency- Mean-Mode-Median*4*Displaying Data (histogram, cumulative frequency histogram, quartiles, box and whisker)*4*Scatter Plots, Correlation*4*Line of Best Fit, Prediction*4*Percentiles and More Quartiles*4*Multiple Choice Practice*1*PROBABILITY*2*Counting Principle*4*Permutations*4*Sample Spaces and Tree Diagrams*4*Single and Compound Events*4*Theoretical versus Empirical Probability*4*Mutually Exclusive and Independent Events*4*Complement*4*Conditional Probability*4*Problems Involving AND and OR*4*Multiple Choice Practice*4**4**4* Useful for teachers of Maths/Mathematics.