Column Crunchers Slides
A vibrant, 5-slide presentation for 2nd grade students. It includes a 'Fast Tens' warm-up with visual aids, an embedded Khan Academy video for subtraction without regrouping, and clear, step-by-step instructions for the 'Color-Coded Columns' activity using purple and yellow cues.
Column Crunchers Worksheet
A student worksheet for 2nd-grade subtraction using the 'Column Crunchers' method. Features 5 practice problems set in color-coded grids (purple for tens, yellow for ones) to reinforce place value alignment, plus a bonus creative challenge.
Column Crunchers Exit Ticket
An exit ticket for the 'Column Crunchers' lesson where students solve one 2-digit subtraction problem (76 - 34) and label the tens and ones columns to demonstrate understanding of place value alignment.
Column Crunchers Teacher Guide
A comprehensive teacher guide for the 'Column Crunchers' lesson. Includes pacing, specific pause points for the video, discussion questions, and tips for addressing common 2nd-grade misconceptions.
Column Crunchers Answer Key
An answer key for the 'Column Crunchers' worksheet and exit ticket, showing the correct solutions for all 2-digit subtraction problems using the color-coded theme.