What Will You Learn?

• Lab Manual Class 8th is based on latest NCERT and CBSE.
• 1. To visually verify that sum of first n odd numbers is n2 (a perfect square).
• 2. To determining the value of (a + 1)2, when value of a2 is given.
• 3. To observe some given number patterns and write their next three steps/rows.
• 4. To explore a pattern in the successive differences of different powers of consecutive numbers at different levels till the different is the same at a certain level.
• 5. To make the following figures, using set-squares : (i) Square (ii) Rectangle (iii) Parallelogram (iv) Rhombus (v) Trapezium
• 6. To verify by paper cutting and pasting that the sum of the four interior angles of a quadrilateral is 360°.
• 7. To make the following shapes by paper folding and cutting : (a) a kite, (b) a rhombus.
• 8. To verify that (a) the diagonals of a rectangle are equal. (b) the diagonals of a square are equal. (c) the diagonals of a rhombus or a parallelogram are not equal.
• 9. To verify the following algebraic identity by paper cutting and pastings : (a + b)2 = a2 + b2 + 2ab.
• 10. To verify the following algebraic identity by paper cutting and pastings : (a – b)2 = a2 + b2 – 2ab.
• 11. To verify the following algebraic identity by paper cutting and pasting : (a + b) (a – b) = a2 – b2.