You have selected Grade 8-12 Geometry




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1 Self Assessment Self Assessment - Grade 8-12 Geometry Info Go
 

Objective: Assessment

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2 Logic Inductive and Deductive Reasoning Info Go
 

Objective: To identify and use inductive and deductive reasoning

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3 Logic Mathematical induction Info Go
 

Objective: To use proof by mathematical induction

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4 Logic Proof by Disproof of a Contradictory Statement Info Go
 

Objective: To prove that a statement is true by proving that the contradictory statement is false

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5 Logic Disproof of Counter Example Info Go
 

Objective: To identify a statement as a counter example to disprove a statement

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6 Geometry-congruence Congruent triangles, Test 1 and 2 Info Go
 

Objective: On completion of the lesson the student will be able to identify which test to use to show two triangles are congruent.

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7 Geometry part 2 Congruent triangles: Tests 3 and 4 Info Go
 

Objective: To recognise congruent triangles and matching sides and angles using AAS and RHS

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8 Geometry part 2 Proofs and Congruent Triangles Info Go
 

Objective: To use congruency in formal proofs in order to determine unknown angles and sides

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9 Geometry part 2 Similar Triangles Info Go
 

Objective: To use similarity tests for triangles and determine unknown sides and angles in triangles

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10 Similar triangles Using similar triangles to calculate lengths Info Go
 

Objective: On completion of the lesson the student will be able to calculate lengths using similar triangles.

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11 Geometry part 2 Examples involving overlapping triangles Info Go
 

Objective: To determine the lengths of unknown sides in overlapping or adjacent similar triangles

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12 Geometry part 3 The Triangle Inequality Theorem Info Go
 

Objective: To use the triangle inequality theorem to determine constructability of triangles

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13 Geometry-angles Parallel Lines. Info Go
 

Objective: On completion of the lesson the student will able to identify corresponding, co-interior and alternate angles.

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14 Geometry part 1 Additional questions involving parallel lines Info Go
 

Objective: To determine angle magnitude for angles formed by parallel lines and transversals

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15 Geometry part 2 More difficult exercises involving parallel lines Info Go
 

Objective: To determine the angles of geometric figures using known properties and theorems

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16 Geometry part 2 Further difficult exercises involving formal reasoning Info Go
 

Objective: To determine formally angles of geometric figures using known properties and theorems

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17 Circle geometry part 1 Theorem - Equal arcs subtend equal angles at the centre Info Go
 

Objective: To know that equal arcs on circles of equal radii subtend equal angles at the centre

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18 Circle geometry part 1 Theorem - The perpendicular from the centre to a chord bisects the chord Info Go
 

Objective: To know that the perpendicular from the centre of a circle to a chord bisects the chord and to know that the line from the centre of a circle to the mid-point of a chord is perpendicular to the chord

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19 Circle geometry part 1 Theorem - Equal chords in a circle are equidistant from the centre Info Go
 

Objective: To know that equal chords in equal circles are equidistant from the centres

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20 Circle geometry part 1 Theorem - The angle at the centre is double the angle at the circumference Info Go
 

Objective: To know that the angle at the centre of a circle is double the angle at the circumference standing on the same arc

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21 Circle geometry part 1 Theorem: Angles in the same segment of a circle are equal Info Go
 

Objective: To know that angles in the same segment of a circle are equal

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22 Circle Geometry Theorem - The angle of a semi-circle is a right angle. Info Go
 

Objective: On completion of the lesson the student will be able to prove that 'The angle of a semi-circle is a right-angle.'

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23 Circle geometry part 1 Theorem: The opposite angles of a cyclic quadrilateral are supplementary Info Go
 

Objective: To know that the opposite angles of a cyclic quadrilateral are supplementary

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24 Circle geometry part 1 Theorem - Exterior angle of cyclic quadrilateral equals interior opposite angles Info Go
 

Objective: To know that the exterior angle at a vertex of a cyclic quadrilateral equals the interior opposite angle

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25 Circle geometry part 1 Theorem - At the point of contact a tangent is perpendicular to the radius Info Go
 

Objective: To know that the tangent to a circle is perpendicular to the radius drawn to it

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26 Circle geometry part 1 Theorem: Tangents to a circle from an external point are equal Info Go
 

Objective: To know that the tangents to a circle from an external point are equal

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27 Measurement - Advanced area Area of a Trapezium Info Go
 

Objective: To calculate the area of trapezia using A=(h/2)(a+b)

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28 Measurement - Advanced area Area of a Rhombus Info Go
 

Objective: To calculate the area of a rhombus using diagonal products

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29 Measurement - Advanced area Area of a Circle Info Go
 

Objective: To calculate the area of circles and sectors and to solve circle problems

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30 Measurement - Advanced area Area of Regular Polygons and Composite Figures Info Go
 

Objective: To calculate area of composite figures and solve problems using correct formulae

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31 Measurement - Advanced volume Finding the volume of prisms Info Go
 

Objective: To calculate the volume of prisms using V=Ah and solve volume problems

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32 Measurement - Advanced volume Volume of a Cylinder and Sphere Info Go
 

Objective: To solve problems and calculate volumes of cylinders and spheres and parts of each

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33 Measurement - Advanced volume Volume of Pyramids and Cones Info Go
 

Objective: To calculate the volumes of pyramids and cones

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34 Surface area Surface Area of a Cube/Rectangular Prism Info Go
 

Objective: To calculate the surface area of cubes and rectangular prisms

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35 Surface area Surface area of a triangular/trapezoidal prism. Info Go
 

Objective: On completion of the lesson the student will be able calculate the surface area of a number of triangular and trapezoidal shapes by applying the appropriate formula.

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36 Surface area Surface Area of a Cylinder and Sphere Info Go
 

Objective: To calculate the surface area of cylinders and spheres

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37 Surface area Surface Area of Pyramids Info Go
 

Objective: To calculate the surface area of pyramids

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38 Surface area Surface Area of Composite Solids Info Go
 

Objective: To calculate the surface area of composite solids

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39 Surface area Surface area of composite solids Info Go
 

Objective: On completion of the lesson the student will be able to find the surface areas of Composite solids.

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40 Measurement - Area Introducing the Rules for Finding the Area of a Rectangle and a Parallelogram Info Go
 

Objective: To calculate the areas of rectangles and parallelograms using Area of Rectangle = Length x Height and Area of Parallelogram = Base x Height

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41 Measurement - Area Finding the Area of a Triangle and Other Composite Shapes Info Go
 

Objective: To calculate the area of triangles and measure and calculate composite shape area

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42 Geometry part 1 Angle Sum of a Triangle Info Go
 

Objective: To use the angle sum for a triangle to calculate unknown angles

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43 Geometry part 1 Exterior angle theorem Info Go
 

Objective: To use the external angle of a triangle theorem to calculate unknown angles

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44 Geometry part 1 Special triangles Info Go
 

Objective: To use the properties of equilateral and isosceles triangles to calculate angle size

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45 Geometry part 1 Quadrilaterals Info Go
 

Objective: To use the angle sum of a quadrilateral to calculate unknown angles

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46 Quadrilaterals Quadrilaterals 1 Info Go
 

Objective: To recognise, name and describe the properties of quadrilaterals

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47 Quadrilaterals Properties of Parallelograms - Opposite Angles Equal Info Go
 

Objective: To prove and use 'Opposite angles of a parallelogram are congruent'

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48 Quadrilaterals Properties of Parallelograms - Diagonals, Sides and Angles Info Go
 

Objective: To prove parallelogram properties and calculate unknown angles and lengths

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49 Quadrilaterals The Parallelogram Umbrella Info Go
 

Objective: To prove properties of specific parallelograms and find angles and lengths

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50 Quadrilaterals Properties of Trapezoids Info Go
 

Objective: To prove properties of trapezoids and find unknown lengths and angles

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51 Geometry-quadrilaterals The quadrilateral family and coordinate methods in geometry Info Go
 

Objective: On completion of this lesson the student will know the relationships between quadrilaterals and use coordinate methods to prove some of the properties.

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52 Pythagoras Proofs of Pythagoras' Theorem Info Go
 

Objective: To examine and complete proofs of Pythagoras' Theorem

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53 Pythagoras Pythagoras' Theorem: Finding the Hypotenuse Info Go
 

Objective: To calculate the length of a hypotenuse using Pythagoras' Theorem

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54 Pythagoras Using Pythagorean Triples to Identify Right Triangles Info Go
 

Objective: To identify right triangles by using Pythagorean Triples or Pythagoras' Theorem

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55 Pythagoras Calculating the Hypotenuse of a right-angled Triangle Info Go
 

Objective: To calculate the length of a hypotenuse where lengths are given as surds or decimals

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56 Pythagoras Calculating a Leg of a right-angled Triangle Info Go
 

Objective: To calculate the length of sides other than the hypotenuse using Pythagoras' Theorem

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57 Geometry-constructions Geometric constructions Info Go
 

Objective: On completion of the lesson the student will able complete constructions with a ruler and a pair of compasses.

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58 Geometry part 3 Points, Lines and Planes Info Go
 

Objective: To identify collinear points and coplanar lines and points in 2 and 3 dimensions

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59 Geometry - angles To determine angle labelling rules, naming angles according to size, angle bisector properties and related algebra Info Go
 

Objective: On completion of the lesson the student will label angles, use a protractor and perform calculations using algebra involving angles.

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60 Geometry part 3 Angle Bisector Construction and its Properties Info Go
 

Objective: To geometrically bisect angles and calculate angle size given bisection

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61 Geometry part 3 Circumcenter and Incenter Info Go
 

Objective: To use properties of triangles, circles, circumcentres and incentres

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62 Geometry part 3 Orthocentre and Centroids Info Go
 

Objective: To use properties of triangles, circles orthocentres and centroids

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63 Trigonometry part 1 Trigonometric Ratios Info Go
 

Objective: To name the sides of a right-angled triangle and to determine the trig ratios of an angle

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64 Trigonometry part 2 Trigonometric Identities Info Go
 

Objective: To simplify expressions using trigonometric equalities

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65 Trigonometry part 1 Using the Calculator Info Go
 

Objective: To determine trigonometric ratios using a calculator

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66 Trigonometry-ratios Using the trigonometric ratios to find unknown length. [Case 1 Sine]. Info Go
 

Objective: On completion of the lesson the student will be able to use the sine ratio to calculate lengths and distances.

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67 Trigonometry part 1 Using the Trigonometric Ratios to find unknown length [Case 2 Cosine] Info Go
 

Objective: To use the cosine ratio to calculate the adjacent side of a right-angle triangle

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68 Trigonometry part 1 Using the Trigonometric Ratios to find unknown length [Case 3 Tangent Ratio] Info Go
 

Objective: To use the tangent ratio to calculate the opposite side of a right-angled triangle

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69 Trigonometry part 1 Unknown in the Denominator [Case 4] Info Go
 

Objective: To use trigonometry to find sides of a right-angled triangle and the Unknown in denominator

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70 Trigonometry part 1 Trigonometric Ratios of 30, 45 and 60 Degrees: Exact Ratios Info Go
 

Objective: To determine the exact values of sin, cos and tan of 30, 45 and 60 degrees

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71 Circle geometry part 1 Theorem - Angle between a tangent and chord equals angle in alternate segment Info Go
 

Objective: To know that the angle between a tangent and a chord through the point of contact is equal to the angle in the alternate segment

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72 Geometry transformations Geometry Transformations without Matrices: Translation Info Go
 

Objective: To find the image of a point or object after a translation

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73 Geometry transformations Geometry Transformations without Matrices: Rotation Info Go
 

Objective: To determine rotation angle and to perform prescribed rotations

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74 Geometry transformations Geometry Transformations without Matrices: Dilation or Enlargement Info Go
 

Objective: To describe dilations and to calculate lengths and scale factors of dilated figures

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75 Exam Exam - Grade 8-12 Geometry Info Go
 

Objective: Exam

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