The Game Arena

One calm place for classical and Singapore Math students to keep skills sharp — games that reveal structure, not noise.

Flash Cards and Strategy Mode stay free. Match & Sort and Euclid are free too. Annual or the Full School Pass unlocks Count & Show and the rest of the Arena.

New here? · How flashcards work · Why calm practice

Scholar: Guest Scholar

Who is sitting with you?

Tap the grade at the table. That sitting comes first. The rest of the Arena stays visible.

Math Facts Practice

Calm fluency practice with optional Strategy Mode — making 10, doubles, compensation, and fact families, the same mental moves Singapore Math builds in class.

IXOpen

Flashcards

Flip at your own pace. Pure fluency, or Strategy Mode with quiet hints — making 10, doubles, and related facts. Free for every family.

XLocked

Timed Drills

Gentle timed choices by operation and grade. Strategy Mode pairs each fact with a calm mental-strategy line.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

Stuck on one skill?

When the textbook runs out of problems on the exact thing they’re stuck on, this gives a short matching set — same models, same language, no second book.

See how it works

Singapore Foundations

See how numbers join and come apart — bonds, bars, place value, and fractions, the foundation of every later strategy.

IVLocked

Number Bonds

Wholes composed of parts — find the missing piece, or study every bond. Grades K–5, calm and unhurried.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

VLocked

Bar Models — See the Story

Word problems stop being scary when you can see them. Part–whole and comparison models for grades 2–5.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

VILocked

Place Value

Build and read numbers with hundreds, tens, and ones. Optional regrouping — 10 ones become a ten.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

VIILocked

Fraction Sense

Equal parts of a whole — build, compare, and see when fractions are the same.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

Most requested

A short set on one skill — same pictures as the lesson.

·Locked

Extra Practice

Pick one skill your child is stuck on. Get 10 calm problems that use the same pictures and language as the lesson. The first problems always show the model.

See pricing

Annual $47 per year, or Full School Pass $97 once for 10 years. Flash Cards and Strategy Mode stay free.

Geometry & Pattern

Notice what stays the same and what changes — the beginning of geometric thought.

VIIILocked

Pattern & Symmetry

Mirror figures, continue repeating and growing patterns, and spot a repeating motif — short, calm sessions.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

Classical Games

IOpen

Euclid's Game

Two piles of counters. Subtract multiples of the smaller from the larger. Reveal the hidden ratio of the Euclidean algorithm.

IILocked

Wythoff's Game

Remove objects from one pile, or equal numbers from both. Cold positions mark where the golden ratio quietly governs play.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

IIILocked

Tower of Hanoi

Move the discs from the first peg to the last, never placing a larger disc upon a smaller. Discover elegant recursion.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

Dimensions Math KA

A study companion to the book. Match & Sort is free. Count & Show, Shape Hunt, Compare & Measure, and Which Has More? unlock with Annual or the Full School Pass.

K1Open

Match & Sort Together

Same, almost the same, or different. Match, sort, and left or right. Sits beside Dimensions Math KA Chapter 1.

Learn more

K2Locked

Count & Show

Count objects, show the number, and meet one more. Sits beside Dimensions Math KA Chapters 2–3.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

Learn more

K3Locked

Shape Hunt

Find curved or flat, name the shape, and notice where it is.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

Learn more

K4Locked

Compare & Measure

Which is taller? Which holds more? Same words as the lesson.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

Learn more

K5Locked

Which Has More?

Two groups. More, fewer, or the same.

Part of the full calm Arena.

Annual is $47 per year. Full School Pass is $97 once for 10 years. Flash Cards and Strategy Mode stay free.

See pricing

Learn more

FLASHCARDS, MATCH & SORT, AND EUCLID — FREE FOR EVERY FAMILY