Perspective Drawing
The uses of terms in perspective drawings.
Perspective drawings of simple objects
Intersection of Solids
Determining the lines and curves of intersection of geometrical solids.
Developing surfaces of intersecting solids.
True Shapes
Determining the true shapes of truncated geometrical solids
Building models of truncated solids showing the true shapes
Link Mechanisms
Interpreting different link mechanisms.
Ploting the loci of points on different link mechanisms.
Special Curves
Explaining the locus definitions and practical applications of selected special curves.
Construction of special curves using different methods
Computer Aided Design (CAD)
At the end of this lesson, the students should be able to understand Computer-Aided Design (CAD)
Introduction to Computer Graphics
Using the computer to write alphabets and figures.
Using the computer to draw lines, triangles, polygons, geometrical solids, enlarge and reduce plain figures.
Oblique Drawing
Explaining oblique drawing
Oblique drawing of shaped blocks.
Oblique drawing of shaped blocks.
Isometric Drawing
Explaining isometric drawing and isometric axis.
Isometric square, rectangle and circle.
Blocks involving lines arcs and circles
Dimensioning Techniques
Applying correct techniques to dimensioning various drawings
True Lengths and Surface Development
Explaining development and its applications to production and construction industries.
Determining the true lengths of full and truncated geometrical solids.
Developing the surface of full and truncated geometrical solids.
Using cardboard to produce models of geometrical solids developed.
Special Curves
Explaining the term loci, ellipse, cycloids, and their applications.
Constructing an ellipse using different methods
Tangents and Tangency
Explain the principles and applications of tangency.
Construct tangents to:
a. a point on the circumference of a circle.
b. two equal and unequal circles.
Construct tangents of arcs:
a. arcs touching externally
b. arcs touching internally
Apply the principles of tangency to constructing objects with arcs, lines and circles.
Equal Area of similar Figures
Stating the assumptions or theorems of equal areas
Constructing plain figures of equal areas.
Enlargement and Reduction of Figures
Explaining the applications of enlargement and reduction of objects
Reducing given figures to given proportions/ratios.
Enlarging given figures to given ratios.
Scales
Explaining the term “scale” and its uses.
Listing type of scales
Constructing types of scales
Polygons
Explaining the term polygons.
Identifying and naming types of polygons
Constructing polygons using different methods.
Quadrilaterals
Describing quadrilateral and properties.
Distinguishing different types of quadrilaterals.
Constructing various types of quadrilaterals.
Circles and Triangles
Identifying and describing parts of a circle.
Identifying and describing types of circles.
Inscribing a circle to a given triangle.
Circumscribing a circle to a given triangle.
Dissecting a circle to get a triangle.
Angles and Triangles
Identifying, measuring, and construct types of angles
Identifying and constructing types of triangle.