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Outcomes summing to 1 & complement — Quiz Game

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Resource guide

Key stage

GCSE

Subject

Mathematics

Time

~45 min

Access

Paid subscription

Assessment

Included

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About this resource and curriculum

Study guidance and sample questions

Get the most from this

Try the quiz. Read or listen to each question, take your time and choose your answer. Look at the feedback when you finish, and ask for help with a tricky idea.

This quiz offers short practice. Read or listen to questions with a younger learner where helpful, but give them time to think.

When an attempt is recorded, the dashboard may show its score and time. It does not store a per-question list of mistakes; discuss the on-screen feedback together.

Use this quiz for practice or a check-in. For GCSE, check the relevant DfE subject content and the awarding body's current specification before using this as assessment evidence.

A recorded attempt can show score and time, not a saved list of individual mistakes. Review responses with the learner before choosing a next step.

Use any on-screen review after the quiz to discuss one response and a next step. A saved score or time is not a saved mistake-by-mistake report.

How to study with Outcomes summing to 1 & complement — Quiz Game

This parent guide relates the page examples with a practical study routine. The current resource is labelled Mathematics, GCSE, Year 10, Year 11, Quiz. Use that framework, the learning summary and published prompts to clarify what successful work should demonstrate.

Prepare a focused session

Read the title and learning focus jointly. Ask the learner to recognise the understanding, terminology or method they may need. Scan each sample and recognise instruction words, amounts, signals, constraints or new terms. Agree a realistic time window, clear diversions and gather useful tools such as paper, pencil, ruler, coloured pens, calculator, headphones or a device. Encourage an independent opening attempt so the response indicates sound understanding and doubt. A concise pause often strengthens remembering better than an same-session answer.

Make thinking shown

Invite the learner to restate the task in their own words. They can underline essential information, break a extended problem into smaller steps, sketch a representation, organise details, compose a sentence or describe a planned method. Ask why their approach fits and whether another strategy could work. When progress stops, provide a carefully scaled hint: state again the goal, point towards a related example, reduce the choice, then show only the next step. Return control immediately afterwards. Spoken reasoning exposes mistakes and practises accurate subject language.

Check accuracy and understanding

Compare the attempt with shown answer guidance after sustained effort. Inspect more than the final response: review the method, explanation, units, details, sequence, spelling or presentation where related. Ask the learner to identify the opening point where their reasoning changed direction. Complete corrections actively in a different colour or separate space, followed by a concise description of the improvement. For a correct answer, ask for reasoning and one independent check. This distinguishes confident understanding from guessing while building accuracy, reflection and careful working habits.

Consolidate and extend

Finish with retrieval from memory. Cover the example and ask for the core idea, process or fact again. Create one small variation by adjusting a value, condition, example, viewpoint or level of support while keeping the learning focus. Invite the learner to write a related question and supply checking guidance. Record one success and one precise next step, perhaps revisiting terminology, repeating a calculation, adding details or refining clarity. Recheck that target afterwards in the week because spaced review gives clearer information than same-session repetition.

The interactive player, downloadable file and note answer material retain their existing access controls. The guide strengthens preparation, discussion and review.

Sample questions

Try these questions before opening the interactive quiz. Answers and feedback remain inside the quiz.

P(blue) = 2/5. What is P(not blue)?
An experiment has exactly three possible outcomes, with probabilities 0.2, 0.5 and p. What is p?
A spinner has only red, green and blue. P(green) = 0.15 and P(red) = 0.25. What is P(blue)?
P(six) = 1/6. What is P(not six)?
The probability of passing a test is 0.9. What is P(fail)?

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