The concept of bar graph was introduced through packets of gems. Students arranged different coloured gems in vertical lines to figure out the maximum and minimum coloured gems. They learned about the concept of place value and also filled in ‘Fake cheques’ to write and compare numbers. A situation from the story ‘Spaghetti and meatballs for all’ was given to students in which they had to accommodate 32 guests on 8 tables. It was very interesting to find students brainstorming various combinations and arrangements. From this strategy, they were introduced to the concept of perimeter. Thus, discovering that perimeter is always calculated by going around the figure and adding the measurements of its sides. For hands on experience, students measured and calculated the perimeter of different polygons drawn on the floor.
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