Free printable resources · Original practice
Mystery grid drawing.
One tile at a time.
Copy each labeled fragment to its matching address in a 4 × 4 grid. Keep every tile upright and reveal eight original drawings.
8 distinct puzzles.
Fixed shuffles + teacher answers.
An address tells you where, a fragment tells you what
The target has four columns A–D from left to right and four rows 1–4 from top to bottom. A tile labeled C2 belongs in the third column of the second row, whatever its position in the scrambled source collection. Copy the short line segments and their crossings into that cell. The source tile is 18 mm wide and the target cell is 24 mm wide, so transfer each fragment at a 4:3 enlargement.
For example, a source line beginning halfway down its left boundary should enter halfway down the target cell’s left boundary. Copy its relative location rather than the 18 mm measurement. Do not rotate a tile to make a familiar object part look upright. Blank source cells map to blank target cells; they are still part of the complete address assignment.
| Puzzle IDs | Original answer subjects |
|---|
| MG01–MG04 | Lighthouse, balloon, snail, watering can |
| MG05–MG08 | Plant, bicycle, violin, cabin |
Each puzzle has its own fixed shuffle. The student gallery uses the scrambled worksheet; the completed subject appears in the teacher answer. Line segments are clipped at cell boundaries and reconstructed from those same segments in their addressed positions. This task differs from plotting coordinate pairs: addresses locate whole cells rather than individual points.
Print a test sheet before the full pack
Choose the file matching the paper in your printer. Print the PDF at Actual size / 100%, turning off Fit, Shrink and browser headers. An SVG editor or browser can change its scale even though the file uses millimeter dimensions. Use the supplied calibration bars where present when a task depends on physical size; a screen preview alone does not establish printed size.
The packs contain the same individual pages in collection order. They are a convenient download, not extra different exercises. On coordinate plots, uniform scaling preserves the numerical positions relative to the axes. On image-copy tasks, keep the specified proportions and any stated source-to-target enlargement. Color is optional: labels, line positions and relative lightness also explain the references.
More ways to practice
Address first, fragment second
A mystery grid drawing gives each fragment two pieces of information. The address, such as row 3 column 2, says where the fragment belongs. The fragment itself says what to draw there: which lines cross the tile, where they meet its edges, and which side is up. Treat these as separate decisions. Place the tile by address, then copy its contents in the orientation shown.
This separation is what makes the task checkable. If a line leaves a tile at the top edge, the neighbouring tile above must receive that line at its bottom edge. Mismatched edge contacts are the clearest sign that a fragment was copied into the wrong address or turned.
- Read the address and mark that cell lightly before drawing anything.
- Note which edges of the fragment carry lines, and at roughly what fraction along each edge.
- Copy the fragment with the same side up as the source; do not rotate it to fit.
- After each tile, compare its shared edges with already completed neighbours.
A fresh worked example
Suppose a 4 x 4 mystery grid has a fragment labelled row 2, column 3. The fragment shows a straight line entering at the left edge about one quarter of the way down and leaving at the bottom edge about halfway across. Nothing else is on the tile.
The address places this tile in the second row from the top and third column from the left. Copy the line so it starts on the left edge, a quarter down, and ends on the bottom edge at the midpoint. Because the line leaves the bottom edge, the tile directly below, row 3 column 3, should show a line arriving at its top edge at the same midpoint. If it does not, either this tile or the one below is misplaced or turned.
The same logic applies at the left edge: the tile in row 2 column 2 should show a line reaching its right edge one quarter down. Checking both contacts confirms the fragment is both correctly addressed and correctly oriented.
- Locate row 2, column 3 and confirm the address before drawing.
- Mark the entry point one quarter down the left edge and the exit point at the bottom midpoint.
- Draw one straight segment between those two points.
- Check the tile below for a matching top-edge contact at the midpoint.
- Check the tile to the left for a matching right-edge contact one quarter down.
Judging the finished image fairly
A mystery grid drawing is a construction task, not a single-answer puzzle. Small differences in line placement are normal, so judge the result against criteria rather than against an exact copy. The useful question is whether each fragment sits at its stated address, keeps its orientation, and meets its neighbours at consistent edge points.
Use the answer or reference file only after the grid is complete, and compare edge contacts rather than every millimetre of line. If a contact is off, trace back to the tile that introduced the error instead of redrawing the whole grid.
- Check every address against the label list.
- Check orientation tile by tile against the source fragments.
- Check shared edges for matching contact points.
- Compare with the reference only after your own checks.
Try this example
A fragment labelled row 2, column 3 shows a straight line entering one quarter down the left edge and leaving at the bottom edge midpoint. Where does it go, and what should its neighbours show?
Show the worked explanation
It belongs in the second row from the top, third column from the left, copied with the same side up. The tile below, row 3 column 3, should show a line arriving at its top edge at the midpoint. The tile to the left, row 2 column 2, should show a line reaching its right edge one quarter down. Matching both contacts confirms correct address and orientation.
Common mistakes
- Rotating a fragment so its lines fit a neighbouring tile more easily. Keep every fragment in the orientation shown and move the error to the correct address instead.
- Drawing the fragment content before confirming the address. Mark the cell from the label first, then copy the fragment into that confirmed cell.
- Judging the finished drawing by how closely it matches the reference line for line. Judge by address accuracy, orientation and consistent edge contacts, which are the criteria the task actually tests.
Check your work
- Every fragment is placed at the address given by its label.
- Each fragment keeps the orientation shown in the source.
- Shared edges between neighbouring tiles meet at consistent contact points.
- Lines within each tile connect the correct edge points.
- The finished grid is checked against the reference only after independent checks.
Questions before you start
What should I do if two neighbouring tiles do not meet at the same edge point?
Do not adjust both. Recheck each tile's address and orientation against its label and fragment, then correct the one that is wrong.
Can a mystery grid drawing have more than one acceptable result?
Yes. Line placement varies slightly between people, so acceptable results share correct addresses, orientation and edge contacts rather than identical lines.
When should I look at the answer or reference file?
After completing the grid and running your own address, orientation and edge checks, so the reference confirms your reasoning rather than replacing it.