Captures d’écran

Description

Use Fraction Strips to represent, compare, order, and operate on fractions. Represent fractions by dragging pieces from the fraction tower into the workspace. Pieces can be placed in a line to form a train. Manipulate the pieces and trains to compare and order fractions or to model fraction operations.

Mathematical Concepts:
Create visual representations that help explore mathematical thinking related to:
● Understanding part-whole relationships
● Representing, comparing and ordering fractions
● Iterating a unit fraction by copying
● Exploring the relationship between the number of equal partitions in a whole and the fractional unit (denominator)
● Exploring equivalent fractions
● Modelling operations with fractions
o placing pieces beside or between each other, to combine fractions (addition)
o removing pieces from trains (subtraction)
o aligning trains to compare fractions with or without using comparison bars, including to find differences (subtraction)
o copying strips or trains to model repeated addition (multiplication)

Features:

● Build representations on an infinite workspace
● Drag the leftmost piece from a fraction strip in the fraction tower into the workspace to represent a unit fraction (one-half, one-third, etc.)
● Drag a piece further along the strip into the workspace (the pieces to the left of it are automatically dragged with it) to represent fractions like two-fourths , five-fifths etc.
● Create trains in which the pieces line up precisely
● Align trains using the built-in snapping
● Copy selected pieces or entire trains
● Show/Hide labels on the fraction pieces
● Zoom in on selected pieces, zoom out to see more of the workspace, zoom to fit to reorient the workspace so all fraction pieces are on the screen.
● Show/Hide rulers underneath trains in the workspace
● Show/Hide steppers to use different fractional units on the rulers
● Customize the fraction tower: change the colour of pieces and which pieces are included in the tower
● Reposition the fraction tower by dragging using the dark blue area at the top and use the double-arrow button to change its height
● Identify equivalent fractions using the equivalence bar at the top of the tower.
● Step through a history of your work with the undo/redo buttons
● Communicate your thinking or highlight various features of your representation using the built-in annotation tool
● Import pictures saved on your device. Pictures can be selected, moved, resized, rotated and copied.
● Save your work and open previously saved files.

Nouveautés

Version 1.0.0

- Improved zooming and panning
- Switch between English and French
- Updated annotation drawing objects ( rulers, number lines, grids, hops and polygons)
- Open files stored on your device or from the web, including several example files
- Opened files contain all the tool and image steps performed; use Undo and Redo to review these steps
- Opened files contain the final annotation step which is not affected by Undo and Redo
- Give access to the iOS Files app
- Updated support page accessed via the information button
- Bug fixes

Notes et avis

Mathew Love ,

Great tool for students

This app allows students to easily represent various fractional amounts, compare, order and add/subtract them. Multiplication and division of fractions is also easily represented and explored. Students can annotate their thinking using the annotation tool

Détails

Vendeur
Ontario Association for Mathematics Education
Taille
42.9 Mo
Catégorie
Éducation
Compatibilité

Nécessite iOS 8.0 ou une version ultérieure. Compatible avec l’iPhone, l’iPad et l’iPod touch.

Langues

Anglais

Âge
Classé 4+
Copyright
© 2017 Ontario Association for Mathematics Education
Prix
Gratuit

Prend en charge

  • Partage familial

    Si vous avez activé le partage familial, vous pourrez partager cette app parmi six membres de votre famille.

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