M-ALG-039Higher onlyReview: Pending

Locate roots using a change of sign

Algebra · Numerical methods (T-ALG-015)

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: Substitute decimal inputs
Fluency: Bracket a root to stated accuracy
Reasoning: Explain the evidence for accuracy or convergence.
Application: Explain why a root lies in an interval
Common misconception: Repeated values alone do not justify every claimed digit.

Video brief

Model how to locate roots using a change of sign. Explain each step; pause for a matching shadow question.

Planned video: V-ALG-039 · Video coming soon

Worksheets

Worksheets coming soon

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