Complete the pattern by identifying the missing shapes in the sequence.

Let me carefully examine the pattern in each row to figure out what’s missing.

The worksheet has 6 rows, each with 6 shapes. In most rows, one shape is missing (a blank cell), and we need to fill it in to complete the pattern.

I’ll go row by row:

Row 1: △ △ △ ▲ △ △
→ First three are white triangles (△), then a black triangle (▲), then two more white triangles.
Looks like the pattern is mostly white triangles, with one black triangle at position 4. So no missing piece? Wait — actually, all 6 cells are filled. So maybe not this row.

Wait — looking again: The grid shows blanks (empty cells) in some rows. Let me locate the blanks.

From the image:
- Row 2: □ ■ □ ■ □ [blank]
- Row 3: ○ ○ ○ ● ○ [blank]
- Row 4: □ ■ □ ■ □ [blank]
- Row 5: ◻ × ◻ × ◻ [blank] (here ◻ is empty square, × is X inside square)
- Row 6: △ ▲ △ ▲ △ [blank]

Yes — rows 2–6 each have a blank in column 6.

So for each row, we need to determine what should go in the 6th position to continue the pattern.

Let’s analyze each row’s repeating unit:

Row 2: □ ■ □ ■ □ ?
Pattern: alternating white square, black square — i.e., [□, ■] repeated.
Positions: 1=□, 2=■, 3=□, 4=■, 5=□ → so 6 should be ■.

Row 3: ○ ○ ○ ● ○ ?
Three white circles, then one black circle, then one white circle… so far: ○ ○ ○ ● ○
That’s 5 items: positions 1–3 = ○, 4 = ●, 5 = ○
If the pattern is “three white, one black”, then after ●, it resets: next should be ○ (position 5 is ○, matches reset), then position 6 should be ○ (2nd of the three). But we already have ○ at pos5, so pos6 = ○? Wait — let's list expected full cycle of 4: [○, ○, ○, ●]. Then repeat: positions 1–4 = ○○○●, 5–8 = ○○○● → so pos5 = ○, pos6 = ○, pos7 = ○, pos8 = ●. So yes, pos6 = ○.

But wait — in the image, row 3 is: ○ ○ ○ ● ○ [blank] → that’s 5 filled, 1 blank. So blank = ○.

Row 4: Same as row 2: □ ■ □ ■ □ ? → same logic → ■

Row 5: □ × □ × □ ?
Here “□” is an empty square (white), “×” is square with X inside (like a marked square). Pattern: [□, ×] repeating. Positions: 1=□, 2=×, 3=□, 4=×, 5=□ → so 6 = ×.

Row 6: △ ▲ △ ▲ △ ?
Pattern: white triangle, black triangle, repeat. So [△, ▲] × 3 would be: △ ▲ △ ▲ △ ▲ → yes, position 6 = ▲.

So the missing pieces (column 6, rows 2–6) are:
- Row 2: ■
- Row 3: ○
- Row 4: ■
- Row 5: ×
- Row 6: ▲

But the task says “Think and Complete the Pattern” — likely expects us to fill in *all* blanks. However, the instruction may imply only one answer? But there are 5 blanks.

Wait — perhaps I misread. Let me double-check the image structure.

Since I can’t see the exact blank locations without zooming, I’ll use the tool to zoom in on the grid to confirm which cells are blank.