11.5 Symbol and Visual Mapping Drills

Mapping Features to Rules

The second half of the DLAB shifts from audio to visual and written material, so reasoning about unfamiliar marks, arrangements, and rule changes you can see becomes central. Public facts do not define an exact official visual format, and this chapter does not claim one. These are original practice-style drills that build a general skill: find the feature that carries meaning, then transfer it to a new item rather than re-copying the example.

Drill 1: One Feature at a Time

Map shape to role: a circle = person, a square = object, a triangle = action. The row circle-triangle-square reads person-action-object. Given a new row square-triangle-circle, do not eyeball it; apply the mapping in order to get object-action-person. Decode by rule, not by which shape "looks" like a subject.

Drill 2: Add Position

Layer a second cue. A dot above a shape = past; a dot below = future. A triangle with a dot above means "acted before"; the same triangle with a dot below means "will act." The shape gives the category, the dot position gives the time. You must now hold two layers without dropping either.

Drill 3: Add Number

Add plurality. A single square = object; two linked squares = objects. In the row circle, triangle, double-square, the right answer preserves both role and number, person-action-objects. Many misses happen when a candidate correctly spots the object but silently drops the fact that it is plural.

Drill 4: Transfer, Don't Copy

Real learning shows up only on a fresh item. If dot-above = past and a double shape = plural, then double circles with a dot above should combine person + plural + past, reading something like "people acted before" if the system supports that. Build the new row yourself and answer it without peeking at the example.

The Visual Cue Checklist

Avoid Overfitting

Suppose one example shows a large circle and a small square. Size may matter, or it may be incidental. You cannot tell from one item. Find a comparison pair: if another example shows a large square that still just means object, size is probably not the cue. Strong visual reasoning constantly asks, "What changed, and did the meaning change with it?" If a feature varies but the meaning does not, ignore that feature.

Timed Elimination

Under time pressure, lean on elimination rather than full decoding. An answer that ignores a clearly marked feature is weak. An answer that reverses a known position rule (past versus future) is weak. If two choices both honor every known cue, pick the one that fits the newest example with the fewest extra assumptions, the minimal-assumption rule. This keeps you from inventing rules the examples never supported. In review, label each miss honestly: did you overfit one example, or did you ignore a marked feature?

Overfitting is repaired by drilling comparison pairs; ignoring features is repaired by forcing yourself to name every mark in a row before choosing. Naming the exact failure mode, then re-testing on a fresh symbol row a day later, is what proves the rule transferred instead of being memorized.

Worked Example: Three Stacked Visual Cues

Put shape, position, and number together. Rules: circle = person, triangle = action; a dot above = past; doubling a shape = plural. Decode the row "double-circle(dot above) + triangle." The double circle is people (plural person), the dot above makes it past context, and the triangle is the action, so the row reads "people acted" in the past, roughly "the people acted before." If a new row shows "circle + triangle(dot below)," you get "a person will act." The shapes set categories, the dots set time, the doubling sets number, three independent layers read in parallel.

The characteristic miss here is layer-dropping: catching person and action but losing the plural, or catching the shapes but losing the dot. Your review note should name the dropped layer precisely, "I read person and action but missed that the circle was doubled," and your repair set should force you to verbalize all three layers aloud before answering ten fresh rows.

Disciplined Feature Inventory

Before choosing on any visual item, run a fast inventory: list every distinct mark you see, then ask which marks vary across the examples and which stay constant. A feature that varies while the meaning stays put, such as the size of a shape that never changes its category, is noise to be ignored. A feature that varies with the meaning is the cue. This inventory habit is what separates reliable visual reasoning from lucky guessing, and on the visual half of the DLAB it is the difference between decoding a rule and inventing one the marks never justified.