Make-Ten Lab
Move counters and discover number bonds by completing a ten-frame.
Open the Lab →✦ Free mathematics for curious mindsDiscover math.
Discover math.
Discover what you can do.
Learning becomes powerful when you can see an idea, explore it, and make it your own. Dive into free interactive math experiences inspired by the Virginia Standards of Learning.
Free to exploreNo student account neededElementary foundations through Algebra I
Grade 6 · Equations
Keep it balanced.
Think about what makes both sides equal.
x + 5 = 14
One equation. Two equal sides.
What operation should you use on both sides?
Choose the operation that keeps the equation balanced.
Challenge 1 of 4Explore this idea →
Free hands-on mathematics
Choose a starting point. Follow your curiosity.
Each lab opens a window into an important mathematical idea. Select a grade-level topic and explore at your own pace.
Fraction Models
See why equivalent fractions can represent exactly the same quantity.
Open the Lab →Grade 6 · Equations
Discover why inverse operations keep an equation balanced.
Open the Lab →Grade 7 · Unit Rates
Use proportional reasoning to solve meaningful everyday problems.
Open the Lab →Grade 8 · Linear Functions
Move sliders to see how slope and intercept change a line.
Open the Lab →Algebra I · Factoring
Connect polynomial expressions and discover their structure.
Open the Lab →The joy of understanding
Mathematics is something you can explore.
A good mathematical experience makes space to notice patterns, test ideas, explain results, and try a new approach.
See mathematical ideas
Visual representations connect numbers, symbols, and relationships in ways that make sense.
Make your own discoveries
Interactive models invite learners to change values, investigate patterns, and make predictions.
Explain your reasoning
Clear mathematical thinking helps students move from remembering steps to understanding why they work.
Behind the learning experiences
A wider portfolio connects classroom practice, research, and technology.
HUBMATH EDUCATION is not built from digital activities alone. It grows from a longer body of mathematics education work developed through real classrooms, school projects, academic research, and the Brazilian HUBMAT initiative.
Rubik's Cube since 2011
A project developed with students to work with patterns, anticipation, strategy, reasoning, and persistence — later documented in MATH NEWS.
Explore the classroom projects →MATH NEWS in English
Two translated editions document Mathematics Week, student projects, challenges, games, art, film, entrepreneurship, and mathematics across the school community.
Read the English editions →Web and Android learning
HUBMAT ENEM, HUBMAT ETEC, and HUBMAT Premium extend the work into mobile learning experiences available through Google Play.
See the learning apps →Since 1997Mathematics teaching and educational practice
ICMC/USPProfessional Master's research in Mathematics
83Learning experiences and resources in the Brazilian portfolio
37,318Learning items represented across the HUBMAT collection
Brazilian portfolio figures reflect the HUBMAT presentation in October 2026.
Hélio JuniorMathematics Educator & Educational Creator
About the author
Teaching since 1997. Creating from experience.
Hélio Junior is a Brazilian mathematics educator with qualifications in Mathematics Education and Pedagogy, and a Professional Master's degree in Mathematics from the University of São Paulo (ICMC/USP).
His trajectory includes classroom teaching, mathematics coordination, teacher guidance, school-wide projects, academic research, and the creation of educational technology. He founded HUB da Matemática and developed learning experiences that connect mathematics with exploration, stories, games, practice, and mobile access.
The expanded English portfolio now includes the Rubik's Cube project, Mathematics in Action, Knowledge Olympics, translated MATH NEWS editions, and selected digital learning apps.
Your mathematical journey
One question can open a world of discovery.
Start with a lab, test an idea, and find the satisfaction of understanding something new.