IMG 20200803 WA0020

Erastus Taapopi

Mathematics
Grade 8 - 12

Erastus Taapopi is a teacher by profession. He holds an Honours Degree in Secondary Education (Mathematics & Physical Science) from the University of Namibia.

Course Topics

  • SET LANGUAGE AND NOTATIONS
    – Define sets by listing and describing and by using set builder notation. – Use sets and Venn diagrams to solve problems involving not more than three subsets of the universal set
  • COORDINATE GEOMETRY
    – Calculate the distance between two points given in coordinate form, the gradient of the line-segment joining them, and the coordinates of their midpoint
    – Find the equation of a straight line given sufficient information (e.g. the coordinates of two points on it or one point on it and its gradient)
    – interpret and use equations of the form ax+by+c=0, including knowledge of the relationships involving gradients of parallel and perpendicular lines
    – apply coordinate geometry to quadrilaterals
  • TRIGONOMETRY
    – Apply Pythagoras‟ theorem
    – Apply the sine, cosine and tangent ratios for acute angles to the calculation of a side or of an angle of a right-angled triangle
    – Solve trigonometrical problems in two dimensions involving angles of elevation and depression
    – Solve simple trigonometrical problems in three dimensions including angle between a line and a plane
    – Extend trigonometrical ratios to angles between 90° and 360°
    – Solve problems using sine and cosine rules for any triangle and the formula: area of triangle = 1/2absinC
  • BEARINGS
    – Interpret and use three-figure bearings measured clockwise from the north (i.e. 000° – 360°)
  • MATRICES
    – Represent information in the form of a matrix of any order and interpret the data in a given matrix
    – Calculate the product of a scalar quantity and a matrix
    – Solve problems involving the calculation of the sum and difference of any matrices not exceeding 3 × 3 and product of matrices not exceeding 2 × 2
    – Use the zero and identity matrix
    – Calculate the determinant and inverse of a non-singular 2 × 2 matrix
    – Solve simultaneous linear equations by matrix method
  • VECTORS
    – Represent vectors by directed line segment
    – Use standard notations for vectors
    – Add and subtract vectors
    – Multiply a vector by a scalar and interpret these relationships in geometrical terms
    – Calculate the magnitude of a vector
    – Use position vectors
  • TRANSFORMATIONS
    – Reflect simple plane figures in horizontal and vertical lines
    – Rotate simple plane figures about any point, through multiples of 90°
    – Construct given translations, and enlargements
    – Recognise and describe fully, reflections, rotations, translations and enlargements
    – Use the following transformations of the plane: reflection, rotation, translation and enlargement and their combinations

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