UI/UX Designer

Design Math for Everyone

UI/UX Designer — Math! Everywhere!
MathTalk Public Benefit Corporation · Cambridge, MA (Remote)

The Short Version

Math! Everywhere! creates the conditions for all children to succeed in math. MathTalk is building M!E! — a location-based, AI-powered mobile app that turns any neighborhood into a math learning environment. Duolingo meets Pokémon Go, for math. We need a UI/UX designer who can create distinct, beautiful experiences for five distinct audiences — younger children, older children, middle schoolers, parents, and teachers — inside the same product.

This is a burst-contract role: focused design sprints on a flexible schedule. Real design challenges, a meaningful product, and the kind of multi-audience UI work that rarely gets prioritized elsewhere.

What Math! Everywhere! Is

Math! Everywhere! is the only platform that unites what schools teach with the mathematical knowledge families and communities carry — bridging the distance between math in a book and math in the real world — for every child, family, and community.

M!E! is a native mobile app (iOS/Android) with six interlocking components:

• Map + MathTowers — Location-based, curriculum-aligned challenges at real places. The neighborhood is the interface. 500K+ steps walked in pilot.
• MathGlasses (Discover + Problem Solver) — AI photo-to-prompt engine. Point at anything in the real world, get a math question. Problem Solver mode translates homework into plain language for parents. 29:45 avg session.
• MathJournal — Multi-year formative assessment portfolio. Every photo, voice recording, and drawing becomes evidence of mathematical reasoning that travels across grades and teachers.
• Minigames — Curriculum-aligned game and puzzle library within the IM framework. 7,248 levels completed in pilot.
• MathBuck$ — Community currency routing education dollars into neighborhood businesses. 2,469 redeemed at 28 local businesses.
• Teacher + Family Dashboards — Web platform (matheverywhere.com). Content release, formative data, curriculum alignment for teachers. Math Moments and family stats for parents.

[Impact Video]

Core Engagement Loops

By uniting what schools teach with the mathematical knowledge families and communities carry, M!E! core engagement loops transform the relationships children, families, teachers, and neighbors have with math — turning everyday moments into AHA! moments.

• Parent Loop — The Everyday Discovery Loop. Notice → Explore Together → Document → Share. A parent photographs a recipe. MathGlasses generates a counting prompt. Parent and child converse in the parent’s own words. 10–17× increase in math conversations.
• Student Loop — The Learning Integration Loop. Discover → Document → Share → Exchange. A student photographs a brick wall. The app generates a pattern question. MathJournal documents the thinking. Work shared with teacher and family.
• Teacher Loop — The Curriculum Loop. Release → Receive → Assess → Exchange. A teacher releases prompts and minigame levels. Students’ math discoveries enter the classroom. The teacher sees the math through their student’s eyes.

[Core Loops Video]

2025 pilot results: 300+ families. 500K+ steps walked. 7,248 game levels completed. 29:45 avg session. 41–53% weekly stickiness. 2,469 MathBuck$ redeemed at 28 local businesses. 86% caregiver satisfaction. 10–17× increase in family math conversations (Brookside, peer-reviewed). 1st place in the Augmented Learning category of the Stanford Accelerator for Learning’s 2026 Create+AI Challenge.

The Design Challenge

M!E! serves three audiences with fundamentally different needs, contexts, and interaction models — all inside one product. Most products serve one audience. The ones that serve multiple usually build separate apps. Duolingo built three (ABC, Kids, main). Khan Academy built two (Kids, main). YouTube Kids uses three content tiers in one shell. M!E! keeps one app with five skins — shared map, characters, and MathBuck$ economy, but distinct interaction models, information density, and visual tone per audience.

Five Skins, One Architecture

• Young Children — TK–2 (ages 4–7) explore a simplified 3D map with fewer POI types and auto-zoom. Entirely icon-driven with voice/audio navigation — no text in the child flow. Oversized touch targets. Characters speak all instructions aloud. MathJournal uses drawing and voice as primary input. …