Three strategies are
discussed below.
Strategy 1. Building Mental Images of Concepts
The idea behind asking students with learning disabilities in math
to build mental images of concepts and processes is that the images
could assist them associate the appropriate actions necessary for
thinking and working with the concepts and processes.
Examples:
1. Ask students with learning disabilities in math to find suitable,
personal mental images for the following concepts:
1. Least Common Multiples
2. Polynomials
3. Rationals
4. Radicals
Example: Algebra tiles for polynomials
Unifix cubes for least common multiples
2. Ask students with learning disabilities in math to find suitable
mental images for the following processes:
1. Addition and subtraction of signed numbers
2. Multiplication and division of signed numbers
Example: A man or a woman that is walking along a number line
Strategy 2. Using Gestures to Convey a Mental Performance
Some students with learning disabilities in math are successful
in using concrete tools to perform some computation but then fail
when they are asked to do similar tasks without the tools. What
can be done to remedy this problem? Follow the three-step process
below.
First, ask them to carry out a process concretely using a manipulative
or some concrete device.
Second, ask them to carry out the same process mentally and then
to show how it is done using an appropriate gesture.
Third, repeat the second step above continuously until they obtain
success in performing a computation mentally.
Example:
In adding two signed integers, students with learning disabilities
in math could do the following:
1. First, use a number line to show what 3 + -4 means: They draw
a man facing the positive side of the number line. Then the man
moves 3 steps forward and then moves back 4 steps. The man ends
up standing on the point corresponding to –1.
2. Second, they imagine a number line. Then using their fingers,
they explain what
3 + -4 means. Initially, the teacher may need to model this process
and students with learning disabilities in math may be asked to
think aloud. Eventually, they should be able to count either or
with the use of their fingers.
3. Third, they are assigned the task of performing the following
computations using only gestures: 5 + -7, 3 + -2, 4 + -6, 7 + -9,
etc.
Strategy 3: Using a Keyword with a Referent
Using a keyword pictured with a referent is a very effective mnemonic
strategy for enhancing memory of terms or concepts. This strategy
requires the use of auditory and visual image cues.
Example: To remember the word “commutativity,” the
word “commute” is a good keyword. The keyword is then
associated with its referent, say, a picture of two people boarding
a bus with a bi-directional arrow showing the order in which
they enter is not important. The teacher should provide direct
instructions on how to use this strategy properly.