For video of a kindergarten class getting its first introduction to the morphological word sum see:

For a video of a Grade 1 class being introduced to a matrix and a word sum for the family of <help> see:

For video of a Grade 1 lesson targeting grapheme-phoneme correspondences within the context of morphological word sums see:

And to see a preschool class explore a morphological family of words base on <rain> see:

For excellent video seminar describing and motivating SWI see: