Merttens Ruth, Kirkby David:
New Abacus 5: Number Textbook 1
Pearson Education, Oxford (United Kingdom), 2000
Paperback
ISBN: 9780602290962
ISBN-10: 0602290961
New Abacus 5: Number Textbook 1
These textbooks allow independent practice of mathematical skills. They present the concepts at an appropriate reading level. Activities with an investigative or process-skill focus encourage creative and mathematical thinking. Problem-solving is included.
