Topic C: Lesson 16: Rational and Irrational Numbers (K-A)

• Approximating square roots (K-A)
• Approximating square roots walk through (K-A)
• Approximating square roots to hundredths (K-A)
• Comparing values with calculator (K-A)
• Proof: sum & product of two rationals is rational (K-A)
• Proof: product of rational & irrational is irrational (K-A)
• Proof: sum of rational & irrational is irrational (K-A)
• Sums and products of irrational numbers (K-A)
• Worked example: rational vs. irrational expressions (K-A)
• Worked example: rational vs. irrational expressions (unknowns) (K-A)