Grade K Math: Grade K Module 4, Lesson 34: Represent subtraction story problems by breaking off, crossing out, and hiding a part. WCNY TV Classroom is available to stream on pbs.org and the free PBS ...
Grade K Math: Grade K Module 4, Lesson 30: Represent pictorial decomposition and composition addition stories to ten with five group drawings and equations with no unknown. WCNY TV Classroom is ...