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# Place Value Cards

## By Lisa Englard

This app is only available on the App Store for iOS devices.

#### Description

The research behind the Common Core State Standards for Mathematics reveals students’ shallow understanding of place value concepts, evidenced by unreasonable results when adding, subtracting, multiplying or dividing. In order to avoid common errors, students need to develop a deep understanding of grouping by ten – the organizing principle of our base 10 place value system.

Understanding place value goes way beyond simply identifying which digit occupies which place value. Students need to understand how the base ten units of ones, tens, hundreds, etc., can be composed and decomposed to represent numbers in different ways.

This ability will help students when they begin to add and subtract with regrouping and continue to support their understanding as they move on to multiplication and division. Additionally, students will develop a deep understanding of the consistent structure of base 10 as they transition to working with decimal numbers.

The Place Value Cards app takes students beyond the typical rote exercises commonly found in many math textbooks. Students will be challenged to express whole and decimal numbers in new ways.

Place Value Cards features 5 Levels:
Level 1: Tens and Ones
Level 2: Hundreds, Tens, and Ones
Level 3: Thousands, Hundreds, Tens, and Ones
Level 4: Hundreds, Tens, Ones, and Tenths
Level 5: Tens, Ones, Tenths, and Hundredths

For example, on Level 2, the user might see the number 345. The user will be shown that 345 is composed of 3 hundreds, 4 tens, and 5 ones and will be asked to express 345 in 2 new ways. One possibility would be 2 hundreds, 13 tens, and 15 ones.

While working through the levels, students will discover the uniformity of the structure of the place value system. They will see that a given place value can always be decomposed to 10 of the place value to its right. This is true across all whole and decimal numbers.

The deep understanding developed by Place Value Cards will support students as they learn the standard procedures for addition, subtraction, multiplication, and division.

Features:
- 5 Levels with UNLIMITED machine generated exercises for practice, challenge, and fun!
- Positive verbal feedback

We hope you enjoy this app, and will write us a great review!

#### What's New in Version 1.1

Hi!

Thanks for sticking with Place Value Cards! In this update, we've released various interface improvements so go check them out!

Additionally, after months of work, we are very happy to introduce EQUAL CARDS PRO!!

With 100 levels and extra unlimited practice for grades K-5, Equal Cards Pro:

1. Promotes understanding of equality
2. Fosters algebraic reasoning
3. Encourages the development of mental math strategies

We hope you've enjoyed Place Value Cards and KNOW you'll love Equal Cards Pro, so go download it!

Thanks again, enjoy!

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This app is designed for both iPhone and iPad
• Free
• Category: Education
• Updated:
• Version: 1.1
• Size: 3.7 MB
• Language: English
• Seller:

Compatibility: Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch.

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