CRA is a sequential instructional approach during which students move from working with concrete materials to creating representational drawings to using abstract symbols. Using this concrete-representational-abstract sequence helps students develop the thorough mental representations that are foundational for conceptual understanding.

Watch how these students use the CRA approach to solve a fraction problem. By going through this instructional sequence, they demonstrate their flexible understanding of numbers and Operations.

*Videos are chosen as examples of strategies in action. These choices are not endorsements of the products or evidence of use of research to develop the feature.*

Learn how Teachley integrates representational and abstract forms to build mathematical understanding. By displaying both manipulatives and number symbols, students develop their conceptual understanding of Operations and are able to learn from multiple representations.

Numeracy and Mathematics

Arithmetic Fact Retrieval

Cardinality

Counting

Estimation

Mathematical Flexibility

Operations

Place Value

Symbolic Number

Cognition

Long-term Memory

Sensory Integration

Short-term Memory

Spatial Skills

Speed of Processing

Working Memory

Student Background

Adverse Experiences

Home Learning Environment

Physical Fitness

Safety

Sleep

Socioeconomic Status

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