Identifying Sequential Changes

The previous lesson introduced the concept of sequential change. This lesson provides a systematic method for identifying exactly what changes and how it changes — even when the pattern is not immediately obvious.

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The Comparison Method

The most reliable way to identify a sequential change is to compare consecutive pairs of boxes and list every difference.

Step 1: Compare Box 1 to Box 2

Ask:

• Has any shape moved? Where was it, where is it now?
• Has any shape rotated? What was its orientation, what is it now?
• Has any shape changed colour/size? What was it, what is it now?
• Has any shape been added or removed? What appeared or disappeared?
• Has any shape been replaced by a different shape?

Write down (or mentally note) every difference.

Step 2: Compare Box 2 to Box 3

Ask the same questions. The differences should be identical in nature to Step 1.

Step 3: Verify with Box 3 to Box 4

Same check. If the change is consistent across all three transitions, you have identified the pattern.

Step 4: Apply the Change Once More