Lab Manual Plan
A comprehensive 5-day lesson plan guide for teachers, outlining objectives, pacing, and instructional strategies for teaching 3-digit subtraction with regrouping. It uses a 'Math Lab' theme to engage 3rd-grade students.
Subtraction Lab Anchor Chart
Updated visual anchor chart for 3rd-digit subtraction with regrouping. Replaced the mnemonic rhyme with a conceptual "The Great Trade" explanation, using place value block visuals to show swapping units.
Regrouping Rescue Slides
Updated instructional slides for Day 1: Regrouping Rescue. Replaced mnemonic rhymes with a conceptual "Great Trade" explanation focusing on place value exchange (trading a ten for 10 ones).
Blueprint Rescue Worksheet
Updated student practice worksheet for 3rd-digit subtraction with single regrouping. Replaced rhyme headers with "Protocol 1.1: The Great Trade" focused on trading a ten for 10 ones. Part of Lesson 1: Regrouping Rescue.