Case Files Slides Presentation Deck for Discount Detective Lesson
A visually engaging slide deck with a detective theme to guide a lesson on analyzing errors in discount calculations. Includes mental math warm-up, embedded instructional video, error classification, and closure discussion. All text meets the minimum 24px requirement.
Pitfall Patrol Video Guide Document for Discount Detective Lesson
A student note-taking guide designed for use during the instructional video. It provides structured sections for recording the 5-step process, the 3 mathematical pitfalls, and space for working through the example problem.
Receipt Evidence Log Document for Discount Detective Lesson
A student-facing activity sheet featuring 5 "evidence receipts" with mathematical errors. Students must identify which specific 'pitfall' caused the error from a consistent list of choices, explain it in writing, and perform the correct calculation. All student work areas have been enlarged for better accessibility.
Detective Answer Key Document for Discount Detective Lesson
A comprehensive teacher answer key for the Receipt Evidence Log. It identifies each mathematical pitfall, explains the reasoning, and provides the step-by-step correct calculation for all five receipts.
