School admin? Schedule a demo

Strategy-Based Addition Fact Practice Online that Builds True Fluency

MathFactLab moves beyond rote memorization and drill. Our conceptual approach—powered by strategies and visual models—helps students develop true addition fact fluency.
Get Started

The Science of Fact Fluency

At MathFactLab, we observe a simple rule: Do what the experts recommend.
"The best way for students to automatize the single-digit addition facts is for them to actively develop these strategies and use them often. Then, we get not only students with facts at their fingertips but also students who own strategies that grow up into the multi-digit strategies, with all the mental relationships and connections those bring."
— Pam Harris, Developing Mathematical Reasoning: The Strategies, Models, and Lessons to Teach the Big Ideas in Grades K-2
Our students don't memorize facts via flashcards or rote drills. Instead, they build basic addition and subtraction fact fluency by applying strategies and practicing with a wide range of visual models.
Automaticity naturally develops through the repeated application of strategies, providing a foundation for success in math.
Near double addition fact modeled with a ten frame.
Make 10 addition fact represented on a rekenrek, also known as a number rack.
Double bar diagram representing an unknown part in a part-part-whole representation.
Subtraction fact represented on a number line with the problem translated as a missing addend problem.
Subtraction fact problem represented on a ten frame. The chips to be removed are x'd out.
Addition fact as a mssing addend represented on a pair of ten frames.
Student view. When first logging into MathFactLab, students see where they are within the learning progression, what math facts they have mastered, which ones they are working on, and which ones they will be working on next.
Student dashboard in MathFactLab's addition/subtraction fact fluency program. A menu of activites are shown. Each button shows the model that will be used. These include ten frames, number lines, rekenreks, and double-bar diagrams.

Why Our Online Addition Practice is a Cut Above the Rest

Most addition fact practice online sites rely on digital flashcards or video games. Our immersive learning approach aligns with the latest educational research, providing the scaffolding students need to achieve true, lasting fact fluency.
1
Visual Models for Deep Understanding
We represent addition and subtraction problems using a variety of visual models to ground abstract concepts in concrete understanding.
Ten Frames
Helps students visualize number composition—key for the "Make Ten" strategy.
Number Lines
Represent operations as movement and distance to build number sense.
Rekenreks
Encourage subitizing and pattern recognition without counting by ones.
Double-Bar Diagrams
Illustrate the part-part-whole relationship connecting addition and subtraction.
2
A Logical Sequence of Instruction
Learning addition facts should not be random. Our students develop basic addition fact fluency in alignment with typical grade-level standards, following the learning sequence most recommended by researchers.
Foundational Facts First
Mastery of +0, +1, +2, Doubles, Partners to Ten, and +10.
Derived Fact Strategies Next
Students use foundational fact knowledge to apply derived fact addition strategies such as Making Ten or Near Doubles.
Fact Families:
We harness the inverse relationship between addition and subtraction for maximum efficiency. By practicing them together, each operation reinforces the other, making it easier to master both addition and subtraction facts.
3
True Math Fact Fluency
We define fluency the way researchers do: flexibility, efficiency, and accuracy.
While most online math fact practice sites aim for robotic automaticity through anxiety-inducing speed tests, MathFactLab builds deep number sense by fostering multiple aspects of fluency. By replacing "drill-and-kill" with strategic practice, we create flexible mathematicians who retain their fluency over the long term.
4
Not Just the Basics
MathFactLab is designed to meet the needs of all your students, not just those who lack fact fluency.
Got students who need a challenge? We offer enrichment levels to help motivated students learn to mentally solve double-digit addition and subtraction problems.

Respect for Students as Learners

We believe that if you provide students with appropriately challenging work and an achievable path to success, you will have intrinsically motivated learners.
Icon representing the fact that MathFactLab is not game based.
Not Game-Based
MathFactLab avoids distracting arcade gimmicks. Instead, students fully engage in the learning process.
Icon showing a winners' stage representing student pride in their own success.
Pride in Progress
You will find that progressing through the levels of our program is a source of pride for your students.
Icon showing two students, a boy and a girl.
Appropriate for Older Students
While built to meet the curricular needs of the primary grades, there is nothing 'kiddy' about MathFactLab. Our addition/subtraction program is perfect for intervention in upper elementary and middle school, as students in upper grade levels will feel just as comfortable using it as younger ones do.

Built by a Teacher, for Teachers

MathFactLab isn't a game built by developers; it is an educational tool built by a 5th-grade teacher - initially for his own students.
Feature
The Benefit
Adaptive Learning
Meet individual student needs by adjusting fluency rates, passing requirements and assessment methods.
Integrated Review
Continuous maintenance is built in. Students review old facts while constructing new ones.
Flexible Timing
Effortlessly set sessions from 5 to 20 minutes to fit your class schedule.
Detailed Reporting
Get actionable snapshots of class growth and individual student progress with a few clicks.

Ready to transform your students' relationship with math?

Give your students the tools to build conceptual understanding.
Get Started