A concise exit ticket to assess student understanding of triangular numbers and their ability to differentiate between various figurative number types.

A single-page independent practice sheet with 7 problems covering triangular and square number calculations, following the "You Do" phase of explicit instruction.

A single-page graphic organizer for comparing triangular, square, and pentagonal numbers with space for dot patterns and value calculations, aligned with the explicit instruction model.

A single-page guided notes handout for students to capture definitions, dot patterns, and algebraic formulas for figurative numbers using an "I do, We do, You do" structure.

A slide deck for explicit instruction on figurative numbers, featuring "I Do, We Do, You Do" modeling, visual dot patterns, and clear formula derivations.

A condensed, single-page explicit instruction lesson plan for teachers, focusing on triangular and square numbers with an "I do, We do, You do" framework and CCSS alignment.

A complete teacher answer key and guide for "The Calculation Caper." This one-page reference provides the 6-digit master code (4-7-8-6-5-3), detailed step-by-step solutions for every layer, and key facilitation tips. HTML spans with custom positioning are used for reliable exponent rendering.

A refined vault unlock sheet featuring a 2-column workspace layout that provides ample room for step-by-step PEMDAS calculations for all 6 security layers. Workspace boxes use a clear white background.

Six printable challenge cards for the escape room, each containing an Order of Operations problem with exponents that yields a single digit of the master vault code. Each card includes a dedicated workspace for student calculations. Standard HTML tags are used for exponent rendering. Card layout optimized for 2 per page with cut guides.

Introduction document for the escape room activity, setting the scene for "The Calculation Caper" and providing a PEMDAS reference guide for students.