II-Counting From 11 to 19 with Beads
Below is a video lesson along with printable works.
Notes: (1) Practice is the key. (2) At this point encourage your child to do at least one activity from each area everyday: Practical Life, Sensorial, Math, Language, Culture/Geography, and Art. (3) If when reviewing 11-13, your child does not remember one or more of them, avoid correcting, instead count the beads together and include those that he or she does not remember in the Three Period Lesson with the new items – three at a time. (4) Continue counting as long as your child is engaged.
Want more? Here are some Supplemental Materials from other sources.