"Oh no!" Daisi Cordova's fourth-grade class at Cathedral City Elementary School cries in disbelief. Lucille Ball has just misplaced her bonus buck for a second time! Cordova's class is piloting "Lucy ...

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Students are barely beginning to recover from a historic decline in math performance. Across every grade and region of the country, students in every racial, income, and disability group have ...

Want to learn more? Sign up for a free five-week email mini-course full of research-backed strategies to help students make sense of math. The National Assessment for Educational Progress announced ...