Dr Daniel Mansfield's article, "Curious kids: Why do we count to 10?" has been published in The Conversation.
"Counting is perhaps one of the oldest scientific operations still in use today.
From a young age we learn to count the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. These are called the digits. But there is a problem with ten: we have to write it differently because we used up all our digits!
What do we do now?".....