Decimats

Watch the video to learn how to make your game board.

Game from Anne Roche (APMC, 2010)


This video was developed with Sarah at Newtown PS.

Collect resources

You will need:

  • 2 sheets of paper per player

  • different coloured pencils or markers

  • 1 spinner labelled tenths and hundredths

  • 1 six-sided dice or 1-6 spinner (you could also use playing cards)

  • 1 paper clip for the spinner

Colour in Decimats 1 Spinner.pdf

Instructions

  • Watch the video above to learn how to make your game board.

Watch the video to learn how to play.

Game from Anne Roche (APMC, 2010)

This video was developed with Sarah at Newtown PS.

Transcript

Transcript coming soon.

How to play

  • Take turns to roll the dice and spin the spinner and fill in the game board. For example:

      • If a 2 is rolled and ‘hundredths’ are spun, we record our move as a fraction (2/100) and as a decimal (0.02).

  • Colour in on the game board.

  • Complete the 'What I filled' column in words. For example, 'two-hundredths'.

  • Calculate the total and record as a decimal.

  • Use a different coloured marker or pen to fill in the game board for each turn.

  • The winner is the first player to fill in 1-whole (their entire gameboard) or the player who’s gameboard is closest to 1-whole after 10 spins.

  • If a player spins a fraction that won’t fit into the available space, they miss their turn.

  • You can partition a roll in equivalent ways.

      • For example, I rolled 3-tenths but I only have 2-tenths left empty, and some hundredths too.

  • I can partition my 3-tenths as 2-tenths, 8-hundredths and 2-hundredths more to colour in 3-tenths of my gameboard in total.

Discuss/reflect

  • What was the difference between the final game board totals for each player? (By how much did the player win?)

    • How could you prove it?

  • What are some similarities and differences between your two game boards?