Addition Within 100: Regrouping Introduction
Understand how to visually record regrouping in addition problems
Correctly draw and label place value when regrouping ones
Develop confidence in mathematical problem-solving
“How much better it is to get wisdom than gold! Yes, to get understanding is to be chosen rather than silver.”
— Proverbs 16:16 (WEB)Just as we carefully organize numbers in math, wisdom requires careful thinking and organization
Review yesterday's base-ten block lesson and introduce paper recording
Demonstrate how to draw and record regrouping steps
Complete BibleMouse Regrouping Worksheet, drawing each step
Simpler: Use fewer problems with smaller numbers
Challenge: Add three-digit numbers with multiple regroupings
Review worksheet and celebrate mathematical thinking
Coming up: Tomorrow we'll practice more regrouping with fun word problems
Regrouping is a critical skill bridging concrete and abstract math understanding
Children often forget to 'carry' the one or get confused about column placement
Consistent column alignment, understanding of 'trading' concept