SHS1 Geography · Semester 2 Week 1: Maps, Their Elements and Analyses

Lesson notes

Learning Objectives

Indicator: 1.2.1.LI.2 - Explain the concept of map scale and convert from one scale type to another

By the end of the lesson, learners can:

Define map scale in their own words and distinguish between the three main types of map scale: statement, representative fraction (R.F), and linear scale.
Convert a given scale from one type to another, for example from a statement scale to a representative fraction and vice versa.
Construct a simple linear scale from a given statement or representative fraction scale.
Justify the choice of a particular scale type for a given purpose, considering the advantages and disadvantages of each type.
Apply map scale conversion skills to solve real-world distance problems using maps of Ghana and other places.

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Curriculum details

Strand: Navigating Our Environment (Strand 2)
Sub-strand: Maps, Their Elements and Analyses (2.1)
Content standard: 1.2.1.CS.1 - 1.2.1.CS.1 Demonstrate understanding of maps, their importance and the map scales 1.2.1.LO.1 Base on your knowledge on maps, examine the different types of maps, their importance and map scales
Indicator: 1.2.1.LI.2 - Explain the concept of map scale and convert from one scale type to another
Suggested placement: Semester 2, Week 1 (Week 21 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: NaCCA curriculum document, p. 43

Exemplars (from the NaCCA curriculum)

Collaborative learning:
- In groups, think-ink-share the definitions of a map scale, types and their advantages and disadvantages.
- Learners should be conscious of resolving interpersonal conflicts with each other if they arise in group discussions.
Activity-based learning: Practice the conversion of one scale to another (e.g. from statement scale to R.F and linear scale and vice versa) and to construct the linear scale.

Assessment (1.2.1.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 4 Extended critical thinking and reasoning.

Teaching and Learning Resources:
- Topographical maps
- Atlas
- Google earth
- Mathematical instruments