JHS1 Mathematics · Term 3 Week 11: Chance or Probability

Lesson notes

Learning Objectives

Indicator: B7.4.2.1.1 - Demonstrate understanding of likelihood of a single outcome occurring by providing examples of events that are impossible, possible, or certain from personal contexts.

By the end of the lesson, learners can:

Define the terms impossible, possible, and certain in their own words using examples from their daily lives.
Classify given single events as impossible, possible, or certain with correct justification.
Provide at least three original examples of impossible, possible, or certain events from personal contexts such as home, school, or community.
Work in groups to discuss and agree on the likelihood of various events, defending their reasoning with clear explanations.
Distinguish between events that are possible but unlikely and events that are certain to happen.

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Curriculum details

Strand: Handling Data (Strand 4)
Sub-strand: Chance or Probability (4.2)
Content standard: B7.4.2.1 - Identify the sample space for a probability experiment involving single events and express the probabilities of given events as fractions, decimals, percentages and/or ratios to solve problems
Indicator: B7.4.2.1.1 - Demonstrate understanding of likelihood of a single outcome occurring by providing examples of events that are impossible, possible, or certain from personal contexts.
Suggested placement: Term 3, Week 11 (Week 35 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. 86
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Describe each outcome using words like: impossible, possible, or certain.
i. The dog will fly tomorrow (impossible).
ii. Someone in the class would be a teacher in the future (possible).
iii. Ghana will still be an African country tomorrow (certain).
E.g. 2. Ask learners to work in groups to discuss the outcome of the following events using words like: impossible, possible, or certain A. A coin lands heads side up. B. The day after Monday will be Tuesday. C. A new-born baby will be a girl. D. It will rain in Winneba in the first week of January.