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Rekenrek by mathies

價格:免費

更新日期:2018-12-06

檔案大小:33.7 MB

目前版本:1.3.1

版本需求:需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。

支援語言:英語

Rekenrek by mathies(圖1)-速報App

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

Rekenrek by mathies(圖2)-速報App

•subitizing (instantly seeing “how many”)

•counting principles

•understanding addition and subtraction

•developing multiplicative thinking

•visualizing division facts

Rekenrek by mathies(圖3)-速報App

Features:

•Adjust the number of rows.

•Choose a background colour and bead colours.

•Drag the rods to compare values.

Rekenrek by mathies(圖4)-速報App

•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.

Rekenrek by mathies(圖5)-速報App

支援平台:iPhone, iPad