# Mathematical Imagery Trainer — Proportion Imagery Trainer

> Interactive visual trainer for understanding mathematical proportion concepts. (iPhone/iPad app by Terasoft, a.s..)

- Source: https://appshunter.io/ios/app/mathematical-imagery-trainer/id563185943 (this page in markdown: same URL + `.md`)
- Developer: [Terasoft, a.s.](https://appshunter.io/developer/530809325)
- Category: Education, Games
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 36 MB
- Languages: American English
- Released: 2012-12-08
- Data updated: 2026-08-27
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mathematical-imagery-trainer/id563185943/reviews.md

## What is Mathematical Imagery Trainer?

Developed by Berkeley professor of mathematics education, this is an innovative entry to the concept of proportion. “Impressive”, says Edutopia
- Making Math Meaningful.

o        Based on scientific theory of learning
o        Engaging hands-on problem solving
o        Sets off from intuitive exploration
o        Gradually introduces math symbols
o        Individualized classroom activity
o        Rich visualization for conceptual connections


Make the bars green! How? Put your left index on the left bar, your right index on the right bar, and move the fingers up and down. Can you do it?
Sounds simple enough! Once you've found a combination that makes the bars green, can you find another one? How about another? Can you move your fingers while all the while keeping the bars green? How are you doing this? What are you noticing?

Look on the left: You've been working on “A”. Now click “B”. These horizontal lines could help you find “green” locations. Play with this for a while. What's new? Have you discovered a new technique? You can change the calibration of these lines by pressing on the arrow in the bottom-right-hand corner.

Next, click on “C”. See if these numbers help you move between green combinations. What are you noticing this time?

Finally, click “D”. Same game, but now you get to input numbers in a ratio table. Are your shapes green? Study the table: figure out shortcuts for predicting green number pairs. Click the arrow to make the bars go up and down in green.

The Roman numerals take you to different ratios.

Use Easy/Medium/Hard option to control how precise you must be to get green

Use Settings to create your own secret ratios for the four conditions.

Teachers:

o        Proportion is challenging because it is a multiplicative, not
additive concept, so it breaks away from students' arithmetic habits
o        Use this app to introduce the topic in primary school or revisit
it in middle school. Have your students discuss their strategies.
o        Ask students what was surprising for them. Students will say that
they found a “green” pair, then moved both fingers up, but the bars went red.
o        Here's what students will discover for the 1:2 ratio:
o        The fingers need to move in different ways.
o        The right finger needs to move double the speed of the left hand.
o        It's about the relation between where the two fingers are at.
o        The distance between the fingers needs to grow as you go up.
o        For every 1 unit you up on the left, you go up 2 on the right.
o        Wherever the left finger is, the right finger should be double as
high.
o        Get your students to explain how come all these different
strategies give the same outcome. This brings up multiple meanings of ratio and proportion and helps everyone build connections.
o        With the ratio table, help students:
o        see their strategies in the numbers;
o        discover multiplication shortcuts.
o        Discuss real-world situations, such as leaving home at the same
time on a bike(kid) and car (parent). Contrast with non-proportional situations such as two siblings' ages now and when the younger one is double as old.

## Key features

- Interactive visual exercises
- Hands-on problem solving
- Gradual introduction of math symbols
- Individualized classroom activity
- Rich visualization for conceptual connections
- Adjustable difficulty levels
- Customizable ratio settings

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/mathematical-imagery-trainer/id563185943/reviews.md

### 5/5 — Amazing Game!!!

*2013-01-22*

I just love it so much just LOVE it!!!!!

## Frequently asked questions about Mathematical Imagery Trainer

### What is Mathematical Imagery Trainer?

Mathematical Imagery Trainer is a free educational app designed to help users understand the concept of proportion through interactive visual exercises. It was developed with a Berkeley professor of mathematics education and is suitable for primary and middle school students.

### How does Mathematical Imagery Trainer teach proportion?

The app uses a hands-on, intuitive approach. Users interact with visual elements to solve problems, gradually introducing mathematical symbols and rich visualizations to build conceptual connections. It moves from exploration to symbolic representation.

### Is Mathematical Imagery Trainer suitable for teachers?

Yes, teachers can use this app to introduce or revisit proportion concepts in primary and middle school. It allows for individualized classroom activity and encourages students to discuss their strategies and discoveries.

### What are the learning benefits of Mathematical Imagery Trainer?

The app is based on scientific learning theory and aims to make math meaningful. It helps students grasp proportion as a multiplicative concept, moving beyond additive arithmetic habits, and fosters deeper understanding through visualization and exploration.

### Can I adjust the difficulty in Mathematical Imagery Trainer?

Yes, you can use the Easy/Medium/Hard options to control how precise you need to be to achieve the desired outcome. This allows for a tailored learning experience based on the user's proficiency.

### Does Mathematical Imagery Trainer have ads?

No, Mathematical Imagery Trainer does not contain advertisements. It is a free app that focuses on providing an uninterrupted learning experience for its users.

### What devices is Mathematical Imagery Trainer available on?

Mathematical Imagery Trainer is available on iPhone, iPad, and iPod. It is designed to be accessible on Apple's mobile devices.

### How often is Mathematical Imagery Trainer updated?

The latest version of Mathematical Imagery Trainer is 2.0.3, which was last updated on July 22, 2019. While not updated frequently, it offers a stable and comprehensive learning experience.

## Version history (last 3 releases)

### 2.0.3 — 2019-07-22

Now compatible with new iOS versions.

### 1.2 — 2015-01-31

Fixed issues on iOS 8.

### 1.0 — 2012-12-04

No release notes.

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## More apps by Terasoft, a.s.

- [Sight Word Games & Flash Cards](https://appshunter.io/ios/app/sight-word-games-and-flash-cards/id530809322)

All apps by Terasoft, a.s.: https://appshunter.io/developer/530809325

## Related topics

[mathematical imagery trainer](https://appshunter.io/ios/topics/mathematical-imagery-trainer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*