TY - BOOK AU - NCERT TI - Laboratory Manual in Mathematics at Secondary Stage SN - 9788174509895 PY - 2009/// CY - New Delhi PB - NCERT N1 - Contents :- ACTIVITIES FOR CLASS X Acnvrry 1: To find the HCF of two mambers experimentally based on Euclid Division Lemma Acrvrry 2: To draw the graph of a quadratic polynomial and observe: (i) The shape of the curve when the coefficient of r is positive. (ii) The shape of the curve when the coefficient of x is negative. (iii) Its number of zeroes. ACTIVITY 3: To verify the conditions of consistency/ inconsistency for a pair of linear equations in two variables by graphical method ACTIVITY 4: To obtain the solution of a quadratic equation (x+4x60) by completing the square geometrically. ACTIVITY 5: To identify Arithmetic Progressions in some given lists of numbers (patterns). ACTIVITY 6: To find the sum of first n natural numbers. ACTIVITY 7: To find the sum of the first n odd natural numbers. ACTIVITY 8: To find the sum of the first n-even natural numbers. ACTIVITY 9: To establish a formula for the sum of first n terms of an Arithmetic Progression. ACTIVITY 10: To verify the distance formula by graphical method ACTIVITY 11: To verify section formula by graphical method. ACTIVITY 12: To verify the formula for the area of a triangle by graphical method. ACTIVITY 13: To establish the criteria for similarity of two triangles. ACTIVITY 14: To draw a system of similar squares, using two intersecting strips with nails. 13 13 ACTIVITY 15: To draw a system of similar triangles, using Y shaped strips with nails. ACTIVITY 16 : To verify Basic Proportionality Theorem (Thales theorem). 13 ACTIVITY 17: To find the relationship between areas and sides of similar triangles. 13 14 1 ACTIVITY 18: To verify experimentally that the ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. ACTIVITY 19: To draw a quadrilateral similar to a given quadrilateral as per given scale factor (less than 1). ACTIVITY 20: To verify Pythagoras Theorem. 1 ACTIVITY 21: To verify Pythagoras theorem by Bhaskara method. 1 1 ACTIVITY 22: To verify experimentally that the tangent at any point to a circle is perpendicular to the radius through that point. ACTIVITY 23: To find the number of tangents from a point to the circle. ACTIVITY 24: To verify that the lengths of tangents to a circle from some external point are equal. ACTIVITY 25: To find the height of a building using a clinometer. ACTIVITY 26 To obtain formula for area of a circle experimentally. ACTIVITY 27: To form a frustum of a cone. ACTIVITY 28: To obtain formulae for the surface area and the volume of a frustum of a cone. U G ACTIVITY 29: To draw a cumulative frequency curve (or an ogive) of less than type. ACTIVITY 30: To draw a cumulative frequency curve (or an ogive) of more than type. ACTIVITY 31: To determine experimental probability of 1, 2, 3, 4, 5 or 6 by throwing a die 500 times and compare them with their theoretical probabilities. ACTIVITY 32: To determine experimental probability of a head (or a tail) by tossing a coin 1000 times and compare it with its theoretical probability. PROJECTS PROJECT 1: Aryabhat the Mathematician and Astronomer PROJECT 2: Surface Areas and Volumes of Cuboids PROJECT 3: Golden Rectangle and Golden Ratio PROJECT 4: - World's Most Mysterious Number LIST OF PROJECT SCHEME OF EVALUATION ER -