Shopping+Maths

Yesterday we went for some shopping. We have learnt Line Symmetry recently so finding symmetries in buildings,flyover,vehicles,numbers etc. It was fun for Ash as she digested Line Symmetry perfectly. There was a cell no. on one advertise board 9377793777 …confused for a while then said “No”.

[ She has enjoyed following links to understand line symmetry.

http://www.linkslearning.org/Kids/1_Math/2_Illustrated_Lessons/4_Line_Symmetry/index.html

http://regentsprep.org/regents/math/symmetry/Lsymmet.htm

She like making 7 pins Polygon and finding symmetries in them. Is there any symmetry in Alphabet letters? Yes, then Vertical, Horizontal or Both? Found 3 Symmetry in Triangle,4 in Square, 5 in Pentagon , 6 in Hexagon – summarized the rule and most surprised by Circle! ]

Then we have purchased two kind of dates- Irani & Kapkap. Irani date box weighted 2 kg 600 gram and Kapkap box weighted 3 kg 400 gram. Irani – 40 Rs. per Kg and Kapkap 65 Rs. per kg. It was date and jaggery wholesale merchant- Ash noticed whole shop – big weighing scales, types of dates & jaggery. I have asked her amount of irani dates. She is familiar with kilo and gram words but not knowing relation and still unaware of division and fraction so got confused. On road I just told her 1kg=1000gram. Then she counted Rs. 110 but then left it pending to make it clear at home.

At home, we took 3 clay pot (diya pot) and marbles. For 1 kg took 10 marbles in one clay pot and explain her 1 marble=100 gram dates. So three clay pots containing 10,10 & 6 marbles. Now, for 1 kg we have to pay 40 Rs. Then how much for 100gram? To simplify divided 10 marbles in 5’s two group …now 20 Rs. for 500 gram and got answer 4 for 100 gram. And then final amount of Rs. 104 for 2 kg 600 gram dates.

Same way she found amount for Kapkap dates. Just simplified calculation by changing rate to Rs. 60. and She enjoyed it.