bids are invited for math math item 1 glass marble ( set of 400 pcs in 4 color ) math item 2 integer counter 30mm set of 100pcs in 2 color math item 3 magnetic counter set of 48 in 2 color math item 4 set of 500 pcs in 5 color math item 5 unit cubes ( set of 1000 pcs in 10 color ) math item 6 magnetic number with tin plate math item 7 set of 500 beads in 5 colors with 20 hanger ( 25mm ) math item 8 magnetic alphabet ( small ) math item 9 sextant doubly reflecting navigation instrument math item 10 frame abacus wooden 100 beads with 10 wires math item 11 game of place value 54 beads with 6 wire math item 12 decimal abacus 70 beads with 7 wires math item 13 magnetic base ten block math item 14 place value cards math item 15 teacher geometry box math item 16 jumbo geometry box ( transparent & magnetic ) math item 17 hollow sphere metal ( medium size ) math item 18 hollow cylinder metal ( medium size ) math item 19 volume relationship set math item 20 volume relation between cube & sphere math item 21 formation of tetrahedron math item 22 volume relation between cone & cylinder math item 23 isometric geoboard math item 24 circular geoboard math item 25 triangle kit ( exterior angle of regular polygon ) math item 26 construction of parabola math item 27 cyclic quadrilatoral math item 28 angle sum property of triangle math item 29 co-ordinator board math item 30 angle sum property of quadrilateral math item 31 ratio of area of similar triangle math item 32 mensuration cube math item 33 tangent geoboard math item 34 cylindrical cut in 8 parts math item 35 perpendicular line segment is the shortest math item 36 parellogram kit math item 37 area of circle- same as derivation of pie math item 38 magnetic base ten block ( set of 121 pcs ) math item 39 number planet math item 40 power of 2 math item 41 factorisation tiles math item 42 integer number line bar math item 43 roman number kit math item 44 circle kit math item 45 measuring tape 3mtrs math item 46 metric wheel math item 47 rain gauge math item 48 kitchen balance math item 49 conic section ( set of 4 ) math item 50 pythagoras theorem by small squares math item 51 working model of pythagoras theorem math item 52 mensuration kit ( set of 11 ) math item 53 case 1 ( a+b+c ) 2 math item 54 case2 ( a+b ) 2- ( a-b ) 2 equal to 4ab math item 55 algebra kit math item 56 identity kit group activity math item 57 algebra tiles math item 58 clinometer compass math item 59 sextant model math item 60 place value board add & sub math item 61 place value board multiplication math item 62 division board math item 63 factor board math item 64 place value board and counter math item 65 set theory by venn diagram kit math item 66 pascal triangle kit math item 67 relation & function kit math item 68 geometrical progression kit math item 69 maths kit senior2 math item 70 arithmetic chart set of 7 math item 71 chair metal fitted with cushioned seat and back and chrome plated pipe 1 inch round flat pipe without arm math item 72 steel almirah door and shelves made of 1mm and body of 0.8mm ms sheet with 5 shelves making of6 compartments of size 1980x920x485mm math item 73 theodolite instrument with tripod or stand total quantity : 80