About

I am Zaid Berjis. I write study guides, workbooks and interactive lessons in mathematics and physics.

My aim is to make each idea visible before it becomes a formula: a graph to move, a value to change, a pattern to notice. The lessons on this site are free to use. The books and workbooks, published through Amazon Kindle Direct Publishing, go further with structured explanations and practice problems.

If you are a student, teacher, or parent and have a question about a lesson or a book, I would be glad to hear from you.