LEARN · EXPLAIN · REVISE

Sequences

Read the idea, work independently, then explain what changed.

Each section contains concept explanations, three worked examples, ten graded exercises and teacher preparation.

Connect general terms, recurrence relations and partial sums.

Derive terms and sums and solve indexed arithmetic models.

Connect ratios, indexed powers and finite geometric sums.

Build proofs with a verified base, an explicit induction hypothesis and a valid step.