Assessment Map

Key Words and Meanings - Year 10 Maths (Higher)
  • Expressions, Trigonometry, Angles & Polygons
    Alternate anglesAlternate angles in parallel lines are equal  
    PolygonA 2D shape with straight sides  
    QuadrilateralA four sided 2D shape 
    ExpandMultiply out the brackets  
    FactorisePut an algebraic expression into brackets  
    CongruenceTwo shapes are congruent if they are exactly the same shape and size 
    IndexPower 
    Similar shapesTwo shapes are similar if one is an enlargement of the other  
    SimplifyTo gather all the like terms together into a single term  
    Corresponding anglesCorresponding angles in parallel lines are equal  
  • Data handling 1 & 2, Fractions, Decimals & Percentages
    Random sampleA sample where everyone in the population has an equal chance of being chosen  
    Mean An average found by totalling the numbers and dividing by how many there are  
    Median An average found by listing the numbers in order and finding the middle number  
    Interquartile rangeThe difference between the upper quartile and the lower quartile  
    RangeThe difference between the greatest and least values  
    Stratified sampleA sample where different groups (e.g. boys and girls) are represented in sample in the same proportion as the population  
    ModeAn average found by finding the item that occurs the most often  
    Biased sampleA sample where everyone in the population does not have an equal chance of being chosen  
    Cumulative frequenciesThe total of all the frequencies in a set of data  
    Positive correlationAs one quantity increases so does the other 
    Negative correlationAs one quantity increases the other decreases  
  • Formulae & Functions & Working in 2D (bearings, area and transformations)
    FormulaA mathematical relationship or rule expressed in symbols  
    Function A relation between a set of inputs and a set of permissible outputs  
    Inverse functionA mathematical operation or function that exactly reverses another operation or function  
    TransformationThe act of moving or changing a shape  
    Reflection A reflection is an image that you can see in a mirror line  
    RotationThe action of rotating about an axis or centre  
    EnlargementThe action of enlarging a shape or solid  
    Translation The action of moving a shape along and up or down  
    Tessellation Repeating a shape to cover an area with no gaps and no overlapping  
    AreaThe amount of surface that a shape has  
  • Probability, Measures & Accuracy, and Compound Measures
    Relative frequencyExperimental probability  
    Theoretical probability The likeliness of an event happening based on all the possible outcomes  
    Probability space diagramA list of all possible probability events 
    Mutually exclusive eventsTwo or more events are said to be mutually exclusive if they cannot occur at the same time  
    Independent eventsTwo events are independent if the occurrence of one does not affect the occurrence of the other  
    Estimate An approximate calculation  
    Upper boundThe upper limit of a calculation  
    Lower boundThe lower limit of a calculation  
    Error intervalThe margin of error when rounding, usually expressed as an inequality  
  • Equations & Inequalities, Ratio & Proportion, Factors, Powers & Roots and Circles
    EquationA mathematical statement where the values of two mathematical expressions are equal (indicated by the sign =)  
    InequalityThe relation between two expressions that are greater or less then each other  
    SurdAn expression containing one or more irrational roots of numbers, such as 2√3, 3√2 + 6  
    CircumferenceThe distance round the outside of a circle  
    RadiusThe distance from the centre to the edge of a circle  
    Diameter The distance across a circle through the centre  
    ChordA chord is a straight line drawn through a circle which divides the circle into two parts. The line can be drawn anywhere in the circle EXCEPT the center where it becomes the diameter  
    SectorThe sector of a circle is a portion of the circle enclosed by two radii and an arc  
    Segment The segment of a circle is a part of the circle bounded by a chord and an arc  
    TangentA line that touches a circle  
  • Year 10 Exams, Approximate solutions and inequalities, Constructions & Loci
    IterationThe repetition of a mathematical process applied to obtain successively closer approximations to the solution of a problem  
    InequalityThe relation between two expressions that are greater or less then each other  
    Perpendicular bisectorA line which cuts a line segment into two equal parts at 90°  
    Angle bisectorA line which cuts an angle into two equal parts  
    LociThe set of all points that satisfy given conditions  
    Factor A number that divides exactly into a given number e.g. the factors of 12 are 1 & 12, 2 & 6, 3 & 4  
    MultipleA multiple is a number made by multiplying together two numbers  
    Prime factorisationA multiple is a number made by multiplying together two numbers  

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