Vocabulary is one of the strongest predictors of a child's academic performance across almost every subject. It affects reading comprehension, writing quality, verbal expression, and even how well a child can follow classroom instruction. Yet most vocabulary-building tools available to parents feel like word lists and flashcards, which produce short-term memorisation without lasting integration into how a child actually speaks and thinks.
W.I.T.S: What Is The Sentence is a card game by SFM International that approaches vocabulary building from a different angle. Instead of teaching words in isolation, it forces children to retrieve and use words in real time under playful competition. This article breaks down six specific ways the game builds vocabulary in kids, followed by what is in the box, how to play, and practical tips for getting the most vocabulary growth from a game session.
1. Fast Vocabulary Retrieval Under Pressure
Most kids know more words than they use. There is a gap between what sits passively in memory (recognition vocabulary) and what a child can pull out and use in real conversation (production vocabulary). That gap is one of the main reasons children who read well can still sound less articulate than they should. The words are there, but the retrieval pathway is slow.
W.I.T.S trains that retrieval pathway directly. Every round, a child sees a set of letters and has to produce words starting with those letters within a set time. There is no time to hesitate or search. The brain has to reach into vocabulary storage and pull out something that fits the letter and the sentence at once. Over multiple sessions, this repeated retrieval strengthens the neural pathways that make production vocabulary faster and more accessible in everyday speech.
2. Exposure to Words You Would Not Normally Use
Everyday conversation runs on a surprisingly small vocabulary. Research suggests most people use the same 1,000 to 2,000 words across most spoken interactions. That means natural conversation, on its own, does not build broad vocabulary because it keeps returning to the same familiar territory.
W.I.T.S disrupts that loop. When a child draws letters like Q, X, or Z, they cannot fall back on their comfort vocabulary. They have to reach into less-used words: quiet, quirky, expert, exact, zebra, zone. Some of those words come from books they have read but never spoken. Some come from words they have heard but never used. The game pulls those dormant words out into active use, which is what turns them into vocabulary the child actually owns.
3. Learning From Other Players' Sentences
Vocabulary grows fastest when a child encounters an unfamiliar word in a meaningful context and hears how it is used. W.I.T.S delivers this constantly through gameplay. When a parent, older sibling, or teacher plays a round and uses a word the child does not know, that word gets absorbed with immediate context. The child sees which letter it started with, hears the sentence it fits into, and understands the meaning from how it was used.
This peer-based vocabulary transfer is far more effective than a dictionary definition. The child is not being taught a word. They are witnessing another player use it successfully in a sentence, in a fun context, with an emotional charge because points are on the line. That combination of meaning, context, and emotion is what memory research consistently shows produces lasting vocabulary retention.
4. Adjustable Difficulty That Grows With Your Child
Vocabulary building only works when the challenge is set at the right level. Too easy and no new words get learned. Too hard and the child gives up. Most vocabulary tools are locked to a single level, which means they stop being useful the moment a child outgrows them.
The four hourglass timers in W.I.T.S (15, 30, 45, and 60 seconds) let a parent scale difficulty precisely to match the child. Fewer letter cards produce easier rounds. More letter cards force wider vocabulary use. Shorter timers demand faster retrieval. Longer timers allow more considered word choice. The same box works for a seven-year-old just building basic vocabulary and a thirteen-year-old stretching into more sophisticated language. That range extends the useful life of the game across years of vocabulary development rather than months.
5. A Format Kids Return to Voluntarily
The biggest problem with most vocabulary-building tools is that kids do not use them without prompting. A word-a-day app sits unopened. A vocabulary workbook gathers dust. Flashcards get put away after one session. Whatever the tool, if a child does not want to use it, no vocabulary gets built.
Games solve this because kids ask to play them. A game that produces genuine fun becomes something a child chooses on their own terms. W.I.T.S has this quality because the competitive mechanic is genuinely engaging. Kids want to win. They ask for another round. They pull the box out on a rainy afternoon without adult prompting. That voluntary return is what turns a game into a real vocabulary building tool, because vocabulary grows through repetition and repetition only happens when the child comes back willingly.
6. Vocabulary Practice Without Feeling Like Study
Kids can spot a learning tool disguised as a game within about 30 seconds. Once they identify something as "educational," a mental switch flips and engagement drops. This is why so many well-intentioned vocabulary products end up sitting on shelves after two or three uses. The educational branding gives the game away.
W.I.T.S works because the game mechanic is genuinely competitive first and educational second. The child is trying to build a sentence to beat the timer and score points. They are not consciously practising vocabulary. The learning happens as a by-product of trying to win, which is exactly the psychological framing that produces the most lasting educational outcomes. The vocabulary growth is real. The child just does not think of it as vocabulary work, which is why they keep coming back.
What's in the Box
Every W.I.T.S: What Is The Sentence box contains four decks of cards and the physical components needed to play. The Blue Vowel Cards and Green Consonant Cards carry the letters used to build sentences, each with a printed point value. The Red Action Cards add a creative twist to each round, and the Steal Cards give opponents a chance to jump in when the active player runs out of time. The box also includes four hourglass timers (15, 30, 45, and 60 seconds) and one dice, which controls both the number of consonant cards drawn and the timer used each round.
How to Play
One player is Card Guard, managing the deck and tracking score. The active player rolls the dice to set both the number of Consonant Cards drawn and the timer used, then draws those cards plus one Vowel Card face down. They draw an Action Card and read it aloud. When all letter cards flip face up, the timer starts, and the player builds a sentence where every word begins with one of the revealed letters, using all of them, before saying "What Is The Sentence?" and delivering it. Valid sentences earn the points printed on the cards. Failed rounds let opponents attempt the same letters through a Steal Card. First to 100 points wins.
Tips for Vocabulary Sessions
Play With Adults or Older Kids Present
The vocabulary transfer effect from tip 3 depends on other players using words the child does not yet know. A game between two young kids is fun but produces less new vocabulary exposure than a game with a parent or older sibling in the mix. Include an adult in most sessions if your goal is measurable vocabulary growth.
Use a Slightly Longer Timer Than Feels Necessary
Faster timers push kids to fall back on their most familiar vocabulary. Slightly longer timers give them room to reach for less-used words. If the child could comfortably play at 30 seconds, use 45 seconds instead when vocabulary growth is the goal. The extra time is where the wider vocabulary comes out.
Ask About Interesting Words After the Round
When a child uses a word you did not expect, or when another player uses a word your child clearly did not know, ask about it briefly after the round. "Where did you learn that word?" or "That was a great word, do you know what it means?" This turns a fleeting exposure into a moment of active vocabulary reinforcement without slowing the game down.
Play Two Short Sessions a Week Rather Than One Long One
Vocabulary grows through spaced repetition. Two 15-minute sessions across the week produce more retained vocabulary than one 30-minute session, because the brain needs time between exposures to consolidate new words. Consistency across days matters more than session length.
Frequently Asked Questions
What age is W.I.T.S suitable for building vocabulary?
The game is recommended for age 7 and up. Vocabulary growth benefits are visible across the full age range from primary school through teenage years. Younger children build basic production vocabulary and letter familiarity. Older children stretch into more sophisticated word choice and sentence construction. The scoring system rewards using the cards well, which naturally pushes players of any age toward broader vocabulary use.
How is W.I.T.S different from vocabulary apps or flashcards?
Vocabulary apps and flashcards teach words in isolation, which produces short-term memorisation but rarely integrates the words into how a child actually uses language. W.I.T.S trains vocabulary through active use in real sentences under time pressure, which is closer to how vocabulary actually needs to work in everyday speech and writing. The game also depends on kids voluntarily returning to it, which most apps and flashcard systems struggle to achieve.
How long before I see vocabulary growth from playing?
Small changes in vocabulary retrieval speed are often noticeable within two to three weeks of regular play. Broader vocabulary growth, meaning new words appearing in the child's everyday speech and writing, typically emerges after four to six weeks of consistent sessions. Two short sessions per week is a realistic pattern to aim for.
Can W.I.T.S be used alongside school vocabulary work?
Yes. The game works well as a home complement to whatever vocabulary work the child is doing at school. Parents can even use the Action Cards to steer sentence production toward the specific vocabulary areas the child is currently studying, which reinforces school work through a completely different format.
Where can I buy W.I.T.S: What Is The Sentence?
The card game is available directly from SFM International at sfmintl.com/products/wits-cards. A free browser demo is available at sfmintl.com so you can try the vocabulary-building mechanic with your child before deciding to buy.