IB Math AA SL 1.8 - Infinite Geometric Sequences

This IB Math AA SL 1.8 – Infinite Geometric Sequences slide deck introduces convergence and teaches students how to calculate the sum to infinity for geometric series.

Students review finite geometric sums, then extend the concept to series that continue indefinitely, learning the key condition (|r| < 1) required for convergence. Worked examples, including extracting first terms, finding ratios, and solving applied problems such as dividing a segment infinitely, help students apply the formula efficiently and recognize when infinite sums produce meaningful finite results.