This resource demonstrates how children's mathematical graphics reflect deep levels of thinking, and identifies this as the key to success in mathematics and higher achievement levels.
Chapter 7: Understanding Children's Developing Calculations
Understanding Children's Developing Calculations
On the fourth planet a businessman was engrossed in counting:
‘Three and two make five. Five and seven make twelve. Twelve and three make fifteen. Good morning. Fifteen and seven make twenty-two. Twenty-two and six ...