Mathematics · Classes 9, 10
The outlier investigation
Can one value change the mean while leaving the median unchanged?
Mapping provisionalOpen investigation →Opening your next discovery…
Opening your next discovery…
Make patterns visible. Test a conjecture, compare representations and explain why it works.
The full inspected title inventory includes chapters and concepts still awaiting activities. Inspect this class and subject in the coverage matrix
MORE QUESTIONS TO TEST
2 working activities. Source context and detailed mapping status are shown separately.
Can one value change the mean while leaving the median unchanged?
Mapping provisionalOpen investigation →Must the observed fraction equal the theoretical probability?
Mapping provisionalOpen investigation →Open a chapter to see its learning path and the availability of every experience.
Use fraction representations as a foundation for reasoning about rational numbers.
Construct independent chord bisectors, compare equal radii and test a report whose three rim marks become collinear.
Can different fractions describe the same amount?
Split, compare and discover why different fractions can name the same amount.
How much evidence fixes the centre of a circle?
Construct independent chord bisectors, compare equal radii and test a report whose three rim marks become collinear.
Concepts connect across chapters, classes and subjects.
Open the learning mapProgress stays in this browser. Interacting records an attempt; completion requires a prediction, required workspace tasks, a passed check and a reflection. Earlier completions are not automatically upgraded.
Suggested next: The fraction studioOpen a lab and change a variable. Your learning trail will begin here.
Current syllabus body inspected; unique circumcircle and construction outcomes crosswalked to the current Ganita Manjari chapter title, not substituted for it.
Current body inspected. Original circumcentre construction and degeneracy tasks; wider chord/angle outcomes and the whole IX crosswalk remain separate. SHA and page-level audit in BATCH3-SECONDARY-MATH-SOURCES.md.
2026–27 Class IX curriculum inspected. Selected topics only; advanced-level Mathematics is a separate course.