Lumi's Paper-Folding Day: Write the Equation

First graders help Lumi the lemur and friends on paper-folding day. They estimate a pile of paper cranes, then count it by tens. Next they solve four folding stories where the start, the change or the difference is unknown, choosing + or − and filling the missing number. Last, they write the equation that matches a friend's drawing: tally marks or crossed-out cubes. Every direction is read aloud. A wrong Done marks the boxes to fix and plays a spoken hint, and a child who reads "fewer" as adding hears a hint just for that.

• 13 scenes, about 11 minutes, every direction read aloud
• An ungraded estimate of 25 paper cranes, then counting them by tens
• Four story problems: start unknown, compare and difference unknown
• Two posters to match: tally marks and crossed-out cubes
• Spoken hints for wrong answers, including one for reading "fewer" as adding

• Solve story problems where the start, the change or the difference is the mystery number.
• Write an equation that shows a story, and an equation that finds its answer.
• Write the equation that matches another child's drawing of a story.