Understanding Math

Children´s Technology Review - EDITORS CHOICE FOR EXCELLENCE IN DESIGN: "Teachers take note of this excellent set of classroom friendly math exercises that is coming April 2. Features include unlimited user profiles (children must enter their name) and the ability to track each child's achievements by both quality (accuracy) and quantity, and the ability to see how to add and subtract quantities of up to 100 in 4 different setting."

"Innovative, engaging, and fun; finally an app that teaches kids HOW to do math." TeachersWithApps.com

"This is another excellent math app by appp media. At Fun Educational Apps, we review many apps devoted to teaching math; Understanding Math- Addition and Subtraction ranks as one of the best of the best. That's why it has earned our latest TOP PICK." FunEducationalApps.com

OnSarahsiPad.com: "Understanding Maths - Addition and Subtraction is an ideal app for both home and school. It will be particularly valuable in the lower grades of school and for those children who are moving from concrete to symbolic representations of addition and subtraction. Older children struggling with these concepts will also enjoy using this app as it has an age-appropriate interface"


Understanding Math - Addition and Subtraction is the second app in a series of educational apps based on J. Bruner's Learning Theory “Three Modes of Representation”.
Understand and practise addition and subtraction in 4 games and show your skills in the Duel! Compete against your peers or even parents by setting different levels of difficulty.


Addition - Tap with your fingers
Solve the problem by touching the display.
Example: 3 + 5
Tap with 3 fingers, then with 5.
After solving the problem, you can pop the objects by touching them.
Please turn the "Multitasking Gestures" on your iPad to OFF in "General Settings", as these will close the app!
Common Core Standards:
Understand addition

Addition
Drag down the correct amount of tens and ones.
Example 37+8=
Drag down 3 tens and 7 ones of one colour and 8 ones of the other colour.
See and understand place value: ten "ones" make one "ten".
Common Core Standards:
Understand place value
Understand addition

Subtraction
Drag down the correct amount of tens and ones.
See and understand that ten is a bundle of ten ones
See and understand the place value when taking one away from 10
Common Core Standards:
Understand place value
Understand subtraction

Training
Solve the problem by writing the solution onto the screen.
Help is provided by the iconic representation of the numbers.
Common Core Standards:
Fluently add and subtract within 20 or 100 using mental strategies


Duel
Two players compete against each other.
Each player can choose his level of difficulty.
Tap the sun to start.
The first to enter the correct solution will earn a star.
Earning 5 stars wins the game.

Level 1: ->20, +
Level 2: ->20, +, -
Level 3: ->100, +
Level 4: ->100, +, -
Common Core Standards:
Fluently add and subtract within 20 or 100 using mental strategies

Toolbox
Enter your own addition or subtraction equation.
Explore the place value.

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You don’t have to worry about your child playing independently with appp media apps because we take your child’s privacy and online safety very seriously. Our apps include:
• no links to websites outside the app without a gate
• no ads
• no data collection or tracking
• no social media sharing
• no in-app purchases

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