Neither of these is a marketing exercise. The practice engine is free and will stay free. The field guides are the written form of how I teach a topic from the beginning.
I wrote this myself. It is a curriculum aligned practice engine covering Grades 1 to 12 across four national curricula, with a worked solution behind almost every question.
Each guide takes one year of algebra or geometry and works it through the way I would work it through in class: the rule, why the rule has to be true, the classic traps, and an exam lab with full solutions.
$49 each. Given free to every family who begins a programme.
Ninety minutes: forty five with your child, working real problems, and thirty with you. Within forty eight hours you receive a written assessment of your child’s reasoning. Yours to keep, whatever you decide.