A ten frame is a grid of 10 boxes (usually 2 rows of 5). Filling a ten frame and using another shows sums visually: 7 in one frame and 5 in another, with 3 filling the first frame to make 10, then 2 remaining. This concrete aid bridges counting to mental math.
A ten frame is a 2-by-5 grid that makes the number 10 visible. Because you already know your number bonds to 10 — the pairs that combine to make ten (like 7 + 3 or 6 + 4) — the ten frame turns that knowledge into a picture. When you place counters in a ten frame, you can see at a glance how many are filled and how many empty spots remain. Those empty spots tell you exactly how far away from 10 you are without counting.
Here is how the ten frame helps you add. Suppose you want to add 7 + 5. Place 7 counters in the first ten frame. You can see that 3 boxes are still empty. Now, instead of just adding 5 more on top of 7, you move 3 of those 5 counters into the first frame to fill it up completely — making 10. That uses up 3 of the 5, so 2 remain. Place those 2 in the second frame. Now you can read the answer directly: one full ten frame and 2 more = 12. You have just used the make-a-ten strategy without even writing a number sentence.
This method works because 10 is a special landmark in our number system — a prerequisite idea you already understand from place value and number bonds. Adding through 10 is almost always easier than counting up from a random number. The ten frame forces the landmark to appear on the page, so instead of keeping track in your head, you let the visual do the work.
Over time, with enough practice, the ten frame picture becomes internalized. You will stop needing the physical grid and start automatically decomposing numbers to reach the nearest ten. When you see 8 + 6, you will instinctively think "8 needs 2 more to reach 10, so I take 2 from the 6, leaving 4, giving me 10 + 4 = 14." That mental move — invisible in the final answer — is exactly the ten-frame strategy, running silently in your head. The grid is training wheels for a powerful mental math habit.