\contentsline {section}{\numberline {1}Introduction}{1}{section.1}%
\contentsline {section}{\numberline {2}Substitution into formulas}{2}{section.2}%
\contentsline {section}{\numberline {3}Changing the subject of a formula}{8}{section.3}%
\contentsline {section}{\numberline {4}Constructing Formulas}{15}{section.4}%
\contentsline {section}{\numberline {5}Homework}{19}{section.5}%
\contentsline {subsection}{\numberline {5.1}Substitution into formulas}{19}{subsection.5.1}%
\contentsline {subsection}{\numberline {5.2}Changing the subject of a formula}{21}{subsection.5.2}%
\contentsline {subsection}{\numberline {5.3}Constructing Formulas}{23}{subsection.5.3}%
\contentsline {section}{\numberline {6}Marking}{25}{section.6}%