價格：免費
更新日期：2020-06-03
檔案大小：132.8 MB
目前版本：1.2
版本需求：系統需求：iOS 8.0 或以後版本。相容裝置：iPhone 5S、iPhone 6、iPhone 6 Plus、iPhone 6s、iPhone 6s Plus、iPhone SE（第 1 代）、iPhone 7、iPhone 7 Plus、iPhone 8、iPhone 8 Plus、iPhone X、iPhone XS、iPhone XS Max、iPhone XR、iPhone 11、iPhone 11 Pro、iPhone 11 Pro Max、iPhone SE（第 2 代）、iPad Air、iPad Air Wi‑Fi + 行動網路、iPad mini 2、iPad mini 2 Wi‑Fi + 行動網路、iPad Air 2、iPad Air 2 Wi‑Fi + 行動網路、iPad mini 3、iPad mini 3 Wi‑Fi + 行動網路、iPad mini 4、iPad mini 4 Wi‑Fi + 行動網路、12.9 吋 iPad Pro、12.9 吋 iPad Pro Wi‑Fi + 行動網路、9.7 吋 iPad Pro、9.7 吋 iPad Pro Wi‑Fi + 行動網路、iPad（第 5 代）、iPad（第 5 代）Wi‑Fi + 行動網路、12.9 吋 iPad Pro（第 2 代）、12.9 吋 iPad Pro（第 2 代）Wi‑Fi + 行動網路、10.5 吋 iPad Pro、10.5 吋 iPad Pro Wi‑Fi + 行動網路、iPad（第 6 代）、iPad（第 6 代）Wi‑Fi + 行動網路、11 吋 iPad Pro、11 吋 iPad Pro Wi‑Fi + 行動網路、12.9 吋 iPad Pro（第 3 代）、12.9 吋 iPad Pro（第 3 代）Wi‑Fi + 行動網路、iPad mini（第 5 代）、iPad mini（第 5 代）Wi‑Fi + 行動網路、iPad Air（第 3 代）、iPad Air（第 3 代）Wi‑Fi + 行動網路、iPad（第 7 代）、iPad（第 7 代）Wi-Fi + 行動網路、11 吋 iPad Pro（第 2 代）、11 吋 iPad Pro（第 2 代）Wi‑Fi + 行動網路、12.9 吋 iPad Pro（第 4 代）、12.9 吋 iPad Pro（第 4 代）Wi‑Fi + 行動網路、iPod touch（第 6 代）、iPod touch（第 7 代）。
支援語言：英語
The Rainbow Abacus contributes to improving the cognitive benefits children and beginners can gain from abacus use, thru employing the natural color spectrum order. By highlighting the interactive principle of the color spectrum order as a natural numerical placement and value system, children and beginners can easily adapt to the cognitive benefits of the world's oldest computer. The Rainbow Abacus App. includes a menu that includes:
•“How To Use” section, designed to acquaint beginners to setting up and solving problems on the Rainbow abacus,
•“Learn Abacus” section, designed to acquaint beginners to counting on the Rainbow Abacus including decimal placements,
•“New Contest” section designed with challenging addition and subtraction problems to solve with a automatic calculating and score keeper reset button.
Features:
-based on the Japanese Soroban design, thirteen rows are featured
-thirteen rows allow for number and decimal placements
-seven row of beads follow the natural rainbow color order representing real number values
-six row of gray colored beads representing decimal values
-Black background to highlight the colored beads
-excellent tool for kids and adolescents to calculate and score their own progress
-simple tool for calculating from simple to more advanced problem solving
-on/off reset button for soothing background music to encourage concentration
-provides sound as each bead is moved up and down, to provide the tactile and auditory experience during counting and problem solving
-automatic score keeper for number of problems correctly solved
-reset button for counting
-counting range is from, 0.000000 to 9,000,000
-automatic abacus counting tally
-problem solving digits can range from single digits to 6 digits and up, that also includes decimals
支援平台：iPhone, iPad