3.1 Number & Algebra 數與數系

Learning Units:

• Directed Numbers and the Number Line

• Numerical Estimation

• Approximation and Errors

• Rational and Irrational Numbers

• Using Percentages

• More about Percentages

• Rate and Ratio

• Formulating Problems with Algebraic Language

• Manipulations of Simple Polynomials

• Laws of Integral Indices

• Factorization of Simple Polynomials

• Linear Equations in One Unknown

• Linear Equations in Two Unknowns

• Identities

• Formulas

• Linear Inequalities in One Unknown