MathTappers: EstimateFractions 4+

Make sense of fractions

Tim Pelton

Designed for iPhone

    • 3.1 • 81 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


MathTappers: Fraction Estimation is designed to help learners to build their intuitive understanding of fractions by helping them to relate fractions (both symbols and pictures) to the nearest half (e.g., 0, 1/2 1, 1 1/2, 2, etc.) and then to extend their understanding by challenging them to use fraction estimates in addition and subtraction problems. Learners should be able to master the challenges in this app before moving on to formal operations with fractions. We recommend that this app be used in conjunction with classroom or tutoring activities to support consolidation, mastery and fluency through a series of manageable challenges.

The purpose of this app is to support learners as they are developing their understanding of fractions, fraction symbols and fraction operations by emphasizing sense-making through estimation and the use of visual models. Evidence suggests that if learners are taught formulas and procedures before they develop understanding, then they may not be motivated to spend the effort needed to make sense of what they are doing. We want to support sense-making before procedural mastery.

This app is not intended to be mastered in one shot – rather levels should be assigned judiciously to support classroom learning activities. After introducing each fraction idea (fraction estimation, and estimation of sums and differences) in a classroom presentation, explanation or discussion this app may be used in small group and individual activities to support exploration, sense-making, consolidation and remediation.

Design: Tim Pelton & Leslee Francis Pelton
Programming: Mike Anderson, Joshua E. Smith & Garrett Reimer

The designers of the MathTappers apps are math educators and researchers seeking to create simple games that will help learners to make sense of mathematics one concept at a time. We have designed MathTappers apps to support students in learning mathematics by providing relevant visual models, focused content linked games and helpful suggestions for parents and educators.

Please check out all of our MathTappers apps (links found at

MathTappers: MultiMatch--a matching app that challenges learners to match sets of cards placed on the table. This is our newest MathTappers app. Although it comes with a deck and you can download others from our website, it was really designed to encourage teachers and students make and share their own matching game decks to capture their understanding and challenge others. Please go to and check out our instructions on the right to find out how to make your own decks
MathTappers: Clock Master--learn to tell time
MathTappers: Estimate Fractions--make sense of fraction sums and differences
MathTappers: Find Sums--learn basic facts for addition and subtraction
MathTappers: Multiples--learn basic facts for multiplication and division
MathTappers: Equivalents--equivalent fractions, decimals and percents
MathTappers: Numberline--find relative positions of numbers on a numberline,
MathTappers: Carbon Choices--help students explore their carbon footprint.

What’s New

Version 1.6.3

Adjustments to better suit newer screen sizes.

Ratings and Reviews

3.1 out of 5
81 Ratings

81 Ratings

Deutchymarky ,


MathTappers applications are exactly what they say they are . They are tasks that build conceptual understanding and number sense. I am eagerly awaiting the release of the expanded versions. I can't get these into students' hands fast enough.

Most apps are facts drills or games. MathTappers are thinking and constructivist experiences.

More, please. Whole number and decimal numeracy!!!

Math Parent ,

Great app

With the help of this app it is easy to learn how to estimate fractions. In the process students create a deeper understanding for fractions. The app is full of very nice details; like the visual hint that only appears when you appear to think too long.

Tcl123 ,

Great app!!!!!

I love this app it's easy to understand and it helps me a lot!

App Privacy

The developer, Tim Pelton, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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