Dear teacher, this book is expensive. Thousands of hours went into creating the clearest explanations and most original questions. Because we believe science education can aim higher.
If you like the book, please consider buying a set (10+) or digital for your school, rather than photocopying it (which is not permitted by the way). We can only develop the rest of the series if the books pay for themselves. Please help us by answering these few questions on how to sell more books.
Tony Sherborne, Mastery Science