Complex sentence: In 1967 the Department for Education alerted all the local educations authorities of the need to adapt to the metric system and the following year all bodies that had an interest in the examination system were invited to contribute to the discussion of both metrication and decimalisation in education.
Split into simpler sentences: In 1967 the Department for Education alerted all local education authorities to the need to adapt to the metric system. In 1968 all bodies that had an interest in the examination system were invited to contribute to the discussion of both metrication and decimalisation in education.