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A developmentally appropriate mathematics assessment, Fox Adds Up® provides engaging, one-on-one activities that help you observe each child's progression along important learning milestones. Its activity-based assessments help teachers accurately assess the development of mathematics concepts in these NCTM strands: Number and Operations, Algebra, Geometry, Measurement, Data Analysis and Probability.

Subject Area and Grades

  • Math (Grades K–3)

Assessment Types

  • Observational
  • Diagnostic
  • Formative

Scoring Options

  • Hand scoring

Delivery Formats

  • Hands-on and verbal activities
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Fox Adds Up measures children's understanding of mathematical concepts using engaging, hands-on activities. Skills measured include Number and Operations, Algebra, Geometry, and Measurement.

Hands-on activities using connecting cubes, geometric shapes, and othermathematics manipulatives allow you to observe a child solving problems,reasoning, and communicating at a concrete level. Monitor your students’ progress throughout the school year, then use your observations to communicate effectively with parents or guardians. Everything you need is included in the Fox Adds Up kit.


  • Developmentally appropriate, observational assessments
  • One-on-one assessment
  • Intervention activities customized to student’s needs
  • Assessment activities aligned with NCTM and state standards
  • Complete kit of teaching and test administration materials: Teacher's Guide, Observation and Scoring Records, Staff Development DVD, and Mathematics Manipulatives

 The assessment model below shows how teachers can use Fox Adds Up to guide children on their learning journey.

Fox Adds Up assessments align with the Principles and Standards for School Mathematics of the National Council of Teachers of Mathematics (NTCM), including Number and Operations, Data Analysis and Probability, Algebra, Geometry, and Measurement.

Teachers can download Fox Adds Up intervention activities to provide additional instruction to students who have scored below benchmarks.

View and download Fox Adds Up intervention activities »

Sample Intervention Activity:

The assessment activities in Fox Adds Up were designed with the developmental needs of early learners in mind. Assessment materials include geometric shapes, connecting cubes, and other hands-on "math manipulatives."

The assessments also come with a cuddly fox puppet that can be used to engage students and help them relax.

Next Steps

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(2.519 MB)

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