Chance or Probability · JHS1 Mathematics

Lesson notes

Learning Objectives

Indicator: B7.4.2.1.2 - Classify the likelihood of a single outcome occurring in a probability experiment as impossible, possible, or certain

By the end of the lesson, learners can:

Classify the likelihood of a single outcome in a probability experiment as impossible, possible, or certain, with accurate justification for each classification.
Apply the words impossible, possible, and certain correctly to outcomes of throwing a single die and two dice.
Justify their classifications using the sample space (the set of all possible outcomes) of the experiment.
Work in pairs or small groups to discuss and agree on the classification of outcomes, communicating their reasoning clearly to peers.
Distinguish between outcomes that are impossible, possible, or certain in both mathematical experiments and everyday Ghanaian situations.

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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: B7.4.2.1.2 - Classify the likelihood of a single outcome occurring in a probability experiment as impossible, possible, or certain
Suggested placement: Term 3, Week 12 (Week 36 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. 87
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

Wide black-and-white table depicts dice. Visible labels, values, and notation include: occurring in a probability... — A wide black-and-white table depicts dice. Visible labels, values, and notation include: occurring in a probability experiment as impossible; possible, or certain.

E.g. 1 Discuss the following outcomes of throwing a die using words like impossible, possible, or certain. A. Obtaining the number 1 B. Obtaining the number 7 C. Obtaining the number 4
E.g. 2 Discuss the following outcomes of throwing two

Nearly square black-and-white table depicts dice. The nearly square black-and-white table is arranged with... — A nearly square black-and-white table depicts dice. The nearly square black-and-white table is arranged with horizontal divisions, vertical divisions.

dice using words like impossible, possible, or certain. A. Obtaining a total of 12 B. Obtaining a total of 2 C. Obtaining a total of 13