Exceptions don’t disprove general rules
The general rule “birds can fly” is true. Most birds do fly. But penguins and ostriches don’t. Does that mean the whole idea is wrong? No!
The Strawman Fallacy
A strawman is when someone misrepresents another person’s point then refutes that version instead of the real one.
Children can see number without Counting. It’s called Subitising.
Children can distinguish the difference between one dot or two dots at two years old, without counting them. This is called subitising.
Eumelanin
Eumelanin is a macro molecule that is found in human skin, hair and eyes and which has lots of properties and functions including energy transduction.
Maths Tools: Rekenreks
Rekenreks are not abacuses! The word rekenrek is a Dutch word that means counting rack. Rekenreks can be very useful tools to build number sense.