This is a classic lateral thinking puzzle! The task is to connect all nine dots arranged in a 3x3 grid using only four straight lines, without lifting your pencil from the paper and passing through each dot only once. The key insight is that you are not restricted to drawing within the boundaries of the imaginary box formed by the dots.
Here's how to solve it:
1.
Start at the top-left dot. Draw a line diagonally down and to the right, passing through the middle dot of the grid and extending beyond the bottom-right dot.
2.
From the end of that line (beyond the bottom-right dot), draw a line straight up, passing through the bottom-right dot, the middle-right dot, and extending beyond the top-right dot.
3.
From the end of that line (beyond the top-right dot), draw a line straight left, passing through the top-right dot, the top-middle dot, and the top-left dot.
4.
Finally, from the top-left dot, draw a line straight down, passing through the middle-left dot and the bottom-left dot.
This solution requires "thinking outside the box," which is the whole point of this critical thinking exercise!
The image itself doesn't show the solution; it just presents the puzzle. I can describe the solution as above, but I cannot draw it for you.
Parent Tip: Review the logic above to help your child master the concept of critical thinking worksheet for 4th grade.
