Children's Math Workbook Design

I'm looking for a creative designer to create an engaging math workbook for children. The workbook should cover the following topics:
- Addition and Subtraction
- Multiplication and Division
- Fractions and Decimals

Ideal Skills and Experience:
- Experience designing educational materials for children
- Strong understanding of math concepts
- Ability to create engaging and age-appropriate content
- Proficiency in design software

Please provide samples of previous work.