The ability to prevent mistakes is applied by the person by looking at the sample often. A mental representation of the sample (image) is formed and used to compare with their uncolored design.

Select the behaviour that most closely matches your observations:

Pick up the uncolored design and introduce the activity by saying:

After they look at it, put the sample on the table. Watch their face to be sure that they pay attention to the following instruction.

Point back and forth between the blank and coloured design twice, slowly.

Ending the Activity

The activity ends when the person has finished the picture.

As with all of the ACLS activities, record the date and time of day because they frequently explain inconsistencies between different activities.

Introducing the Activity

Place the materials on the table in front of the person. Position your chair so that you can see their eyes if or when they look at the sample and count the time intervals between looking at the sample.

During the Activity

After you give the directions, do not give any further instructions.

Do not initiate by saying anything else or pointing to anything.

The following materials are required:

• Red, yellow and green twist crayons.
• 
• A coloured sample for them to copy.
• A blank sample for them to colour in.

The diamond colouring activity can be used to differentiate between ACL 4.6 to 5.0.

Do NOT use this activity if the person cannot tuck in the clover or kite activities.

Completes the design with consistent spacing.

The spaces between tiles are spatial properties.

If they noticed the spacing after being cued, try the maple leaf activity.

Score

The tentative score is ACL 5.4.

Copies this design without consistent spacing.

They do not mix up the green, purple or blue colours.

Try the peanut butter or shading activity to differentiate between ACL 5.0 and 5.2.

Score

The tentative score is ACL 5.2.

They see the pattern and stop looking at the sample. Spacing is inconsistent.

When using Design D, they may mix up the green, purple or blue colours. The picture above shows one possibility of mixing the colours up.

This is a surface appearance error.

Score

The tentative score is ACL 5.0.

They refer to the sample for each tile placement.

Spacing is inconsistent.

When using Design D, they may mix up the green, purple or blue colours. The picture above shows one possibility of mixing the colours up.

This is a surface appearance error.

Score

The tentative score is ACL 4.8.

Completes the design by referring to the sample less than seven times. They see the pattern and stop looking at the sample.

Score

The tentative score is ACL 5.0.