Which one of the following does not lead to the development of abstract thinking among the school students?
1
First, teaching the concept of symmetry and then teaching the concept of mensuration.
2
First, teaching the concept of ratio and proportion and then teaching the concept of exponents
and powers.
and powers.
3
First, teaching the concept of fractions and then teaching the concept of rational numbers.
4
First, teaching the concept of fractions and then teaching the concept of decimals.