This video demonstrates how you can use counters to assist students who may need support with early addition or subtraction. These strategies can help students working through our Preschool - Grade 1 Holiday colouring book. The book works on addition and subtraction up to 20 and encourages students to be creative in shading the images.
(https://www.amazon.ca/Adding-Subtracting-Colour-Education-Preschool/dp/1999527666/ref=sr_1_2?keywords=Adding+and+subtracting+with+Colour&qid=1556371245&s=gateway&sr=8-2-spell)