I have just been writing a chapter on percentages for the new book. In the check-up questions I included this little puzzle, which I offer for your enlightenment.
Derek is an education consultant and author. He worked for over 30 years in teacher education, both initial and in-service, and was Co-Director of Primary Initial Teacher Training and responsible for the mathematics components of the primary programmes at the University of East Anglia (UEA) Norwich. He has considerable practical experience of teaching and researching in primary classrooms. His work in mathematics education has taken him to Germany, Belgium, Lesotho, Kenya, Brunei and India. He works as a consultant for both the Training and Development Agency for Schools and the Qualifications and Curriculum Development Agency. As well as his extensive publications in the field of education, which include a number of bestselling books, he has written seven books of Christian drama for young people and a Christmas musical (published by Church House/National Society).
Derek's latest books!
Mathematics Explained for Primary Teachers (5th ed)
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Student Workbook for Primary Mathematics Explained for Primary Teachers
A = all real numbers greater than or equal to 0! Excellent use of the commutative property of multiplication!
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