This book is part of the Impact series, designed to work alongside any maths programme and to involve and inform parents so that their help becomes a routine part of childrens' mathematical education. Each book contains practical activities on specific maths concepts that can be undertaken at home with adults. Each activity comprizes a note to the parents/carers explaining the purpose of the activity plus a response slip to be completed and returned to the teacher. Teachers' notes explain the maths concepts, suggests ways that the tasks might be undertaken at home and give ideas for extension activities. Each activity is illustrated and photocopiable. The book includes links with the National Curriculum plus notes on the relevance of the activities to the Scottish and Northern Ireland educational programme.