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Kids Math: Negative Numbers आइकन

3.0 by NextGen PlayfulMath


Aug 11, 2016

Kids Math: Negative Numbers के बारे में

ऋणात्मक संख्याओं के साथ इसके अलावा और घटाव: संख्या नब्ज

This app provides a platform for students to play with the ideas of negative numbers, including both addition and subtraction. The primary assumption is that, for any positive number, such as 1, there is an inverse, -1, with respect to addition, so that 1 + (-1) = 0. Zero is usually called the additive identity; the inverses are called additive inverses. In the app, a blue ball represents a positive one; a red ball represents a negative one. A blue ball plus a red ball thus results in zero, namely, they cancel out when they come close to each other. This is a useful strategy to learn and teach the big ideas behind negative numbers.

Of course, there are always other ways to explain subtraction as well as negative numbers, each with its own advantages and disadvantages. Ultimately, students should come to the understanding that, given two numbers A and B, (A - B) is a number C such that (C + B = A), whether they are positive or negative.

This app is designed by Dr. Lingguo Bu ([email protected]) at Southern Illinois University using MIT App Inventor. It is free and ad-free for educational purposes. The author is solely responsible for the errors herein.

नवीनतम संस्करण 3.0 में नया क्या है

Last updated on Aug 11, 2016

Improved checking function and performance involving subtraction; added verbal feedback.
Enabled sensor-driven orientation and improved pair generation algorithm.

अनुवाद लोड हो रहा है...

अतिरिक्त ऐप जानकारी

नवीनतम संस्करण

निवेदन Kids Math: Negative Numbers अपडेट 3.0

द्वारा डाली गई

محمد عبده جابر

Android ज़रूरी है

Android 1.5+

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Kids Math: Negative Numbers स्क्रीनशॉट

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