K-2 Number Sense

Dot Cards

Printable - Dot Cards

Rekenrek

Video - Intro to Rekenreks

Video - Rekenreks & addition and subtraction

Web App - Virtual Rekenrek

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 (Spanish)

Level 2 (Spanish)

Level 3 (Spanish)

Ten Park

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

Ten Park Instructions