Aside from being an accomplished actress, McKellar is also a New York Times bestselling author. The actress graduated from UCLA with a degree in mathematics and even co-authored a theorem that has been named after her and her fellow mathematicians.
A math whiz herself, she has authored several books that aim to teach children maths in a fun and exciting manner. Her math books cover the basics, starting from plain numbers to additions and subtraction, multiplication and division, shapes, and more.
Some of the math books she has authored are ‘Ten Magic Butterflies,’ ‘Goodnight, Numbers,’ and ‘Bathtime Mathtime.’