There are a few different ways you can use a book to help with counting to twenty:
Reading the book aloud: You can read the book to your child or student, and have them repeat the numbers after you as you go through the book. This can help with number recognition and verbal counting skills.
Following along with the illustrations: Many counting books will include illustrations or objects that correspond with the numbers being counted. You can have your child or student point to each object as you count, helping them to understand the relationship between the written number and the quantity it represents.
Practicing counting independently: After reading the book together a few times, you can have your child or student try counting on their own, either from the book or from a blank piece of paper. This can help them to solidify their understanding of the numbers and practice their counting skills.
Using the book as a reference: You can also use the book as a reference for practicing counting with other activities, such as counting objects around the house or in a sensory bin.
I hope these suggestions are helpful! Is there anything else you would like to know?