Lifelong Learning Programme

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TEACHERS EXPERIENCES FORM

Title of the Experience
Birthday party – operations on decimal fractions
Name of the teacher
Aleksandra Pilc
Country where it took place
Poland
School typology
Primary school
Thematic Area
Maths
Experience typology
Teaching in class
Type of contact
Direct
Description of the Experience
In the fifth grade during the practicing the topic on decimal fractions one of the students just celebrated his birthday. This situation gave me an idea. I divided the students into groups of four and their task was to plan a surprise birthday party for their friend. The event was to be organized for ten people. I have prepared for them a list of products (food, such as biscuits, juice, cake, etc. as well as decorative items or paper plates, plastic cups, spoons) with prices that were obviously given as fractions. They could buy everything in any quantity but only within the amount of 250 Polish zlotys. Each group also received a large sheet of paper on which they wrote what and how much they bought e.g. 2 kg of chocolate candies, or 3 cartons of apple juice. This task tested the ability not only to perform operations on decimals, but also to plan a party logically because, for example, one group planned to buy a cake, but didn’t buy any plates or spoons to serve the guests the cake. Another group bought 4 cartons of juice but didn’t buy glasses. The winner was the team that correctly performed all the calculations and which had the least money left.

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