Settings that make the math reachable

Time

• Extra time of 1.5×, 2× or 3×. It applies to every round and to any crew board, so a child on extra time is ranked on the same terms as everyone else.
• The timer can be hidden completely. When it is shown it is an arc that empties, not numbers counting down.
• There's no time limit anywhere in Numbula. A slow answer still counts; a quick one counts a little more toward knowing a fact by heart.

Reading

• Pip reads any instruction or question aloud when your child taps Hear it, so a child who cannot read yet can work the whole ladder without an adult sitting beside them. A grown-up can set Pip to read each question by itself, in the child's settings.
• Text can be set to Large or Larger, 115% or 130% of the usual size, for every word and number in the app.
• Dyslexia-friendly letters set every word and number in OpenDyslexic, a free typeface with heavier bottoms and more distinct shapes. Some readers find it easier and some do not: it is a choice to try, not a treatment, and it switches back in one tap. It works with Larger text and high contrast.
• No question depends on reading a word problem. Every prompt is numbers and one spoken line.

Screen

• Declutter mode removes the progress bar, the coins, the characters and the crew, leaving the question and the keypad.
• Reduce motion stills the map, the stars and the feedback animations, and Numbula follows the device's own reduced-motion setting too. Nothing flashes, and nothing moves faster than 3 Hz.
• High contrast mode brings secondary text and every line to at least 7:1 against the background, and thickens borders and the focus ring, at every text size.

Input

• Keypad targets are 64px and work with a switch, a keyboard or a screen reader.
• Numbula never times an answer out while a child is still typing it.
• A child can undo a digit without losing the question.

Who sets what

The coach sets these in the grown-up area, one child at a time. A child can change declutter mode, audio, text size, the letters, high contrast and reduced motion themselves, because the child in the middle of a round is the one who knows whether the screen is too busy or too hard to read. Extra time, caps and curfews stay with the coach.