App Detail » Rekenrek by mathies

What's New

- links to new support pages
- minor bug fixes

App Description

The Rekenrek tool helps to build a deeper understanding of number concepts and relationships.

Mathematical Concepts:

Make visual models that help explore mathematical thinking related to:
•understanding number relationships using anchors of 5 and 10
•representing numbers in different ways, composing and decomposing numbers
•subitizing (instantly seeing “how many”)
•counting principles
•understanding addition and subtraction
•developing multiplicative thinking
•visualizing division facts

Features:

•Adjust the number of rows.
•Choose a background colour and bead colours.
•Drag the rods to compare values.
•Hide beads with one of the two resizable shades. Shades can be repositioned to focus attention.
•Communicate your thinking or highlight various features of your representation using the “pencil” button.

App Changes

• February 17, 2015 Initial release
• July 08, 2016 New version 1.1.0
• June 15, 2019 New version 1.3.1