How To Use Number Pieces

Working with Number Pieces

Tap or click pieces onto the board. Then drag to move them. Tap or click a piece to select it.

Finger dragging individual Number Piece.

Drag on the background to select multiple pieces, or hold down shift while selecting individual pieces.

Finger circling around multiple pieces.

Change the length of an edge piece by dragging the arrow.

Finger dragging the blue arrow to extend edge piece.
Toggle between multicolored or all yellow counter sets.

Change the starting set of pieces to the basic or advanced set.

Toolbar & Keyboard Shortcuts

Icon Tool Shortcut Description
start over toolbar icon Start Over esc Clear all pieces, drawings, and text.
Break pieces toolbar icon Break Pieces B Break selected pieces apart into the next smallest size pieces.
Join pieces toolbar icon Join Pieces J Join selected pieces together into the next larger piece.
yellow colorgreen colorred color Change Color C Change the color of selected pieces.
duplicate toolbar icon Duplicate D Duplicate selected pieces.
rotate toolbar icon Rotate R Rotate selected pieces.
Zoom toolbar icon Zoom Z Zoom the workspace in and out.
Math text tool icon Math Text Tool E Open a keypad for creating expressions and equations.
Tip: Double-tap text to edit it.
Writing tool icon Writing Tool T Enter text using your keyboard.
Tip: Double-tap text to edit it.
Draw tool icon Drawing Tools W Open drawing tool and show the drawing layer.
Trashcan icon Trash backspace, delete Delete selected items.
Share code icon Share Code K Open shared work using a code.
Share icon Share S Share your work with an image, a link, or a code.
Info icon Info I View how-to and other information about this app.

Additional Keyboard Support

Action Shortcut Description
Move Pieces arrow keys Move selected pieces around the workspace.
Move Workspace space +
click & drag
When zoomed in, drag the work space around.
Tip: For touch pads and screens, use two fingers to drag.
Change edge piece length shift +
arrow keys
Change the length of a selected edge piece.
Add unit piece 1 Add a unit to the workspace.
Add 10 piece - vertical 2 Add a vertical 10 piece to the workspace.
Add 10 piece - horizontal 3 Add a horizontal 10 piece to the workspace.
Add 100 piece 4 Add a 100 piece to the workspace.
Add edge piece - vertical 5 Add a vertical edge piece to the workspace.
Add edge piece - horizontal 6 Add a horizontal edge piece to the workspace.

Overview

Number Pieces helps students develop a deeper understanding of place value while building their computation skills with multi-digit numbers. Students can:

  • Use number pieces to represent multi-digit numbers, regroup, add, subtract, multiply, and divide.
  • Use edge pieces to display the dimensions of arrays created with number pieces.
  • Use the drawing and math text tools to label representations and show their understanding.

More Apps

For more Number Pieces resources, iPad version, and other apps, visit:
www.mathlearningcenter.org/apps

Curriculum

To learn about Bridges in Mathematics, an elementary curriculum that employs visual models such as number pieces, please visit:
www.mathlearningcenter.org/bridges/overview

About Us

This app is brought to you by The Math Learning Center, a nonprofit organization serving the education community since 1976. Visit us at:

The Math Learning Center

Acknowledgements

This app was made possible by a generous donation from Dr. David Moursund.

External link to Clarity Innovations

This app was crafted by Clarity Innovations. We help improve teaching and learning by creating solutions that match promising technologies with the needs of education. Visit us at: www.clarity-innovations.com

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© 2019 Math Learning Center  |  Number Pieces version 4.9.0