What is Molly Lynch's approach to teaching math puzzles to children?

Molly Lynch believes that all children can solve challenging problems, they just need to be taught how to do so. In her book, "Math Puzzles for Clever Kids", she provides a variety of puzzles that teach essential PreK-Kindergarten skills, from counting to naming basic shapes to early problem-solving. The book is broken into 7 skills: Number Recognition, Counting & Matching, Shapes & Patterns, Measurement & Comparisons, Addition & Subtraction, Deductive Reasoning, and Problem Solving. Each skill has 8 puzzles to practice. Molly also includes a Parent Prompt on each page to help parents challenge their children further.

What age group are you interested in teaching math puzzles to?