LessonnotesGH

JHS3 Mathematics · Term 3, Week 2

Measurement

Lesson notes

Learning Objectives

Indicator: B9.3.2.1.3 - Use the net of a triangular prism to determine its surface area.

By the end of the lesson, learners can:

  1. Identify the faces of a triangular prism from its net and state the shapes of each face.
  2. Draw the net of a given triangular prism and label the dimensions on each face.
  3. Calculate the area of each face on the net individually.
  4. Add the areas of all faces to find the total surface area of a triangular prism.
  5. Solve real-life problems involving surface area of triangular prisms using nets.

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Curriculum details

Strand
Geometry and Measurement (Strand 3)
Sub-strand
Measurement (3.2)
Content standard
B9.3.2.1 - Derive the formulas for determining the surface area of prisms (i.e. cuboid and triangular prism) and use to solve problems.
Indicator
B9.3.2.1.3 - Use the net of a triangular prism to determine its surface area.
Suggested placement
Term 3, Week 2 (Week 26 of the year)

Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.

Curriculum reference
Mathematics, Common Core Programme (JHS1-JHS3), 2023, p. 206

Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

Wide colour mathematical teaching visual is organised as a table with horizontal divisions, vertical divisions,...
A wide colour mathematical teaching visual is organised as a table with horizontal divisions, vertical divisions, coloured regions. Visible labels, values, and notation include: 5 cm; 3cm; 4 cm; 3 cm; 5cm; 6.5 cm; /6.5 cm; 6.5cm. 
E.g.1Find the surface area of each of the triangular prims. Z
Wide black-and-white mathematical teaching visual is organised as a table with horizontal divisions, vertical...
A wide black-and-white mathematical teaching visual is organised as a table with horizontal divisions, vertical divisions. Visible labels, values, and notation include: →2 cm; 8; 13 cm; 10 cm; 24 cm; 10; 14; 12.
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