In this session, activities will be shared through the creation and use of rekenreks (arithmetic racks), which have been shown to support growth in pre-K-2 number sense up to and within 20 (e.g., cardinality, subitizing, combinations, etc.). Computer-based rekenreks, as well as other technology with similar objectives, will also be introduced.

Presentation Format: PreK-2 Session
Grade Band Audience: PreK to 2