I know the numbers — I like counting - LDI231

The volume focuses on the following topics: numbers, number concept, number sequences, quantities and numbers, part-integer ratio, addition and subtraction in number circle 20, counting by five, number replacement, number resolution, halving and doubling, reversible, interchangeable problems, ordering and comparison. Ideal tasks for either introducing math education in the first grades, as a daily practice in day care homes, or at home.