Trial and Improvement​

trial and improvement
Description

By the end of this unit, students will be able to:

  1. understand the trial and improvement method and its applications in problem-solving;
  2. apply trial and improvement to solve equations or problems with approximate solutions;
  3. analyze the accuracy and limitations of trial and improvement.

Key Stage 4: Algebra

  • simplify and manipulate algebraic expressions (including those involving surds {and algebraic fractions}) by:
    • factorising quadratic expressions of the form x2 + bx + c, including the difference of 2 squares; {factorising quadratic expressions of the form ax2 + bx + c}
    • simplifying expressions involving sums, products and powers, including the laws of indices

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