Fluency with Basic Addition
Applying known facts to derive unknown facts results in efficiency, flexibility, and an understanding of number combinations for young students.
Games to help students learn basic addition facts in meaningful ways
Learning to Write about Mathematics
Renee Parker and M. Lynn Breyfogle
This student-friendly rubric helped improve third graders’ competencies when explaining solution strategies in writing.
Rubric for Learning to Write about Mathematics
Writing about Mathematics
Enriching Number Knowledge
Nancy K. Mack
Exploring number systems of other cultures helps students deepen mental computation fluency, knowledge of place value, and equivalent representations for numbers.
Game directions and number cards
Sift like Eratosthenes
Sandy Buczynski, Jennifer Gorsky, Lynn McGrath, and Perla Myers
The concrete, pictorial, and abstract methods of this lesson give students access to investigate, isolate, define, and use prime numbers.
Activity sheets - Rectangular Arrays