Decimats for decimals

This week in Maths, we have been working on tenths, hundredths and thousandths. It is sometimes a bit hard to remember that thousandths are actually much smaller than tenths. We tried to sharpen our understanding of the value of decimal places by playing Colour in Decimals. The game uses a decimat (a rectangular shape which represents a whole broken into tenths, hundredths and thousandths), a six sided die, a blank die (you mark it with tenths, hundredths and thousandths) and coloured textas or pencils. By rolling the dice we work out how much to colour in of our decimat. The extra challenge is to keep a running total of the amount of decimat coloured in as each turn progresses.

The game really helped us to learn the place value of these decimals and to practice adding decimals together. It also helped us to understand that all our numbers are connected by the number 10.

This is what a decimat looks like;

and this is what the decimat looks like as the game progresses:

The idea for this game came from a great book called Engaging Maths. You can also read about the game in this article:

https://files.eric.ed.gov/fulltext/EJ891799.pdf

 

 

 

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