2-SMIE3-title.JPG2-SMIE3-Contents.JPG3-SMIE3-letters_or_symbols.JPG4-SMIE3-arithmetic_with_letters.JPG5-SMIE3-statement.JPG6-SMIE3-algebra_words.JPG7-SMIE3-a_term.JPG8-SMIE3-expression.JPG9-SMIE3-equation.JPG10-SMIE3-more_terms.JPG11-SMIE3-variable.JPG12-SMIE3-constant.JPG13-SMIE3-constants.JPG14-SMIE3-coefficient.JPG15-SMIE3-example.JPG16-SMIE3-practise.JPG17-SMIE3-powers.JPG18-SMIE3-squared.JPG19-SMIE3-cubed.JPG20-SMIE3-higher_powers.JPG21-SMIE3-square_root.JPG22-SMIE3-square_root2.JPG