K-2 Number Sense

Dot Cards

Printable - Dot Cards

Rekenrek

Video - Intro to Rekenreks
Video - Rekenreks & addition and subtraction
Web App - Virtual Rekenrek
Rekenrek Ideas
Rekenrek Recording Sheet

Arrays and Area Models

Video - Arrays for k-2
Video - Arrays from concrete to pictorial to abstract
Web App - Virtual Array with dots

Ways to Build Number Sense at Home
(plus Spanish translation)

WTBSNAH Homework
Level 1
Level 1 (Spanish)
Level 2
Level 2 (Spanish)
Level 3
Level 3 (Spanish)

Ten Park

Ten Park
Ten Park with Ten Frames (Print in black and white for students)
Ten Park Instructions