Find a Percentage
Maths Resource Description
The game "Find a Percentage" is an interactive way to teach students how to calculate percentages of two-digit numbers. It requires the use of 0-9 dice and a blank 0-50 number line for visual representation. Players take turns rolling the dice to generate a two-digit number and then choose to find either 35%, 40%, or 55% of that number. For instance, if a player rolls a 72, they start by calculating 10% of the number, which is 7.2, and then find 5% by halving the 10%, resulting in 3.6. To determine 35%, they would multiply 7.2 (10%) by 3 and add 3.6 (5%), arriving at 25.2, which is then plotted on the number line.
The game continues with players aiming to be the first to plot four of their calculated percentages on the number line without any of their opponent's points in between. This activity not only reinforces the concept of percentages but also encourages strategic thinking and the use of mental maths. Players are encouraged to discuss various methods for finding percentages, such as obtaining 55% by taking half of the number and adding 5%, or finding 40% by doubling the 10% value twice. These techniques highlight the importance of understanding the relationship between percentages and their fractional equivalents, fostering a deeper comprehension of percentages in a fun and engaging manner.