Children’s mathematical knowledge, understanding and skills are developed through a programme of units from the National Numeracy Strategy. Much emphasis is placed on developing number skills. This is achieved through continuous reinforcement relating to the four rules of number and place value. Importance is also given to the acquisition and practice of mental calculation strategies. In addition to number work, children develop knowledge, understanding and skills relating to shape, space, measures and data handling. Central to all of these activities is the development of investigative skills where opportunities are provided for children to use and apply mathematics to solve practical problems. Children are encouraged to use calculators when appropriate and computers to enhance their learning in this subject.