M-NUM-038Higher onlyReview: Pending

Calculate with upper and lower bounds

Number · Accuracy (T-NUM-008)

v1 mapping, pending teacher review. Only AQA and Edexcel are mapped so far. The first 3 pilot worksheets and their worked answers are available; remaining worksheets are coming soon. All videos are still coming soon.

Retrieval: Choose upper and lower endpoints
Fluency: Bounds of sums, products and quotients
Reasoning: Explain the endpoints and the accuracy of a final answer.
Application: Find a guaranteed speed or area bound
Common misconception: Rounding early changes accuracy; interval endpoints need care.

Video brief

Model how to calculate with upper and lower bounds. Explain each step; pause for a matching shadow question.

Planned video: V-NUM-038 · Video coming soon

Worksheets

Worksheets coming soon

Note: Scope and tier apply to this skill; tag each generated variant separately.