Richa Bhatia

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properties of triangle

circumference of circle

Decimals

Profit & loss class v

Triangles class 5

Triangles introduction class 5

verifying algebraic identity (a+b)^2 by activity method

sum of two rational numbers with different denominators (activity 2)

sum of two rational numbers with same denominator (Activity-1)

Time management

Educational technology in 21st century

Perfect numbers

Number system, natural numbers to real numbers