Decimal Models Game

Decimal Models Game
This game is designed for students who are seeing decimals for the very first time. Instead of starting with math problems, it starts with visuals. It uses a “10-block” system to show that decimals are just fractions of a whole number. Once the player masters Tenths, they can move to the Hundredths grid, where they see that 0.10 is the same size as 0.1, but made of smaller pieces. Scroll down the page for a more detailed explanation.
 

 

How to Play the Decimal Models Game

1. The Goal
   Your objective is to shade in the correct number of blocks in the grid to represent the Target decimal shown at the bottom of the screen.
   

2. Step-by-Step Instructions
   Step 1: Choose Your Level
   At the top, you can toggle between two difficulty levels:
   Tenths: The grid has 10 large blocks. Each block represents 0.1 or 1/10.
   Hundredths: The grid has 100 small blocks. Each block represents 0.01 or 1/100.
   
   Step 2: Fill the Grid
   Click or Tap any block in the grid.
   The game will automatically fill all blocks from the start up to the one you clicked.
   Watch the Displays: As you click, the “Decimal” and “Fraction” boxes will update in real-time to show you the value of your selection.
   
   Step 3: Check Your Work
   Once you believe your shaded area matches the Target number:
   Click CHECK ANSWER.
   Correct: You’ll see a green “Correct!” message, your score will increase, and a new problem will load.
   Incorrect: You’ll see a red “Not quite!” message. You can adjust your selection and try again.
   Skip: If you get stuck, click the SKIP button to get a fresh problem.
    
   

Why this game works for beginners:
Visual Association: Students see that a decimal like 0.3 isn’t just a random number; it represents 3 physical pieces out of a group of 10.
Fraction Connection: By showing 3/10 and 0.3 together, the game teaches that decimals are just another way to write fractions with a denominator of 10.
Place Value Foundation: It introduces the concept of the Tenths column—the first step into the world of numbers smaller than one.

The video gives a clear, step-by-step approach to learn about decimals.

• Show Video

 

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