Angles, Ratios and Patterns
by Anonymous
Turn the protractor to measure angles, simplify ratios into percentages, and work out the next number in a pattern.
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About this app
Angles, Ratios and Patterns is an interactive elementary math learning app covering three core topics. Students adjust a virtual protractor to explore angle sizes and identify acute, right, obtuse, and straight angles, compare red and blue quantities as ratios, simplify ratios, and calculate percentages. A sequence activity introduces adding and multiplying rules, square numbers, and predicting the next number through guided missions.
Use cases
- Elementary students practicing angle classification
- Learners exploring ratios, simplified ratios, and percentages
- Teachers demonstrating number sequences and growth rules
- Parents looking for hands-on math practice at home
Features
- Interactive 0°–180° angle slider and draggable protractor
- Visual classification of acute, right, obtuse, and straight angles
- Red-and-blue dot controls for building and simplifying ratios
- Percentage calculation showing a quantity’s share of the whole
- Sequence activities for addition, multiplication, and square-number patterns
- Guided missions with reset and next-step controls