Algorithms from the start.
Although, i wonder if they learn the basics first before that.
26 * 31 = (20+6)*31 = 20*31 + 6 * 31 is part of algebra i believe.
I learned multiplication algorythms in 3rd grade... not sure about division.
The algorythm should be better explained later in math but still before algebra.
Those books are BS
My thinking of how it should be:
- Introduction to Math : Basic + and -
- Basic Math : Mastery of + & -, intro to * & /
- Basic Math Cont. : Mastery of basic * and /, Intro to the algorythms
- Mastery of Basics : Master algorythms for Integers, Welcome to the world of decimals and negatives
- Order of Operations: Breaking things up, why do the algorythms work
- Advanced operations: Powers, Roots and making equations simpler to solve
- Basic Algebra: The world of variables
- Advanced Algebra: Solving Equations with advanced operations
- Geometry: ...
- ...