: Using visual models to explain why fractions like 12one-half 24two-fourths are the same size.
: Identifying points, rays, and perpendicular/parallel lines. MTH.4.mp4
: Fluently adding and subtracting using standard algorithms. : Using visual models to explain why fractions
: Recognizing and drawing lines of symmetry in two-dimensional figures. Measurement & Data : MTH.4.mp4