Probability and Independent Events — Interactive Lesson & Worksheet (Ages 14–16)

Not sure when to multiply probabilities? This 22-slide interactive lesson explains independent events and shows students how to find the probability of two or more events happening together.

Understanding Probability and Independent Events at GCSE

Students learn that events are independent when the outcome of one does not affect the other, and that the probability of two independent events is found by multiplying, so P(A and B) = P(A) × P(B). The method extends to three or more events. Worked examples include tossing two coins, rolling a dice twice, spinning a three-coloured spinner twice and rolling a dice while spinning a coin.

What’s Included

• 22-slide interactive lesson on independent events
• Learning objectives on independence, events in sequence and multiplying probabilities
• Worked examples with coins, dice, spinners and a box of chocolates
• Self-marking questions with instant feedback
• A 2-page printable worksheet: questions and an answer page

Key Benefits for Students

• Makes the multiplication rule for independent events clear
• Shows how to test whether two events are independent
• Extends from two events to three or more
• Instant feedback on answer questions

Why Teachers Love It

• No prep — ready for whole-class teaching on an interactive whiteboard
• The worksheet gives ready-made practice with answers
• Self-marking questions support independent work
• Familiar contexts keep examples accessible
• Suits teaching, revision and homework

Love this? You’ll love…

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A dependable addition to a GCSE probability topic, giving students a secure method for combined events. Confidence with independent events here leads naturally into conditional probability and tree diagrams.

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FAQ

What year group is this for? Years 10–11 (ages 14–16), GCSE.

Is a worksheet included? Yes — a 2-page printable worksheet with an answer page.

Does it cover more than two events? Yes — the multiplication rule is extended to three or more events.