GT Extensions for Math Investigations: Grade 4 – 3rd 9 Weeks
GT extensions overlap with the regular extensions; however, these extensions address
components of the GT Curriculum Scope and Sequence. These extensions are designed
for gifted math students are as a means to extend lessons conceptually, through depth and
complexity of process, or by providing a “ripple” effect that addresses the learning
objectives and provides a preview of new skills. Additionally, some activities have been
introduced that may substitute for an investigation if a pre-assessment such as preview
data from the beginning of the year deems mastery of objectives in the investigation. The
same objectives are addressed, however, the substitute activity is differentiated. Please
consider time factors when using these extensions, particularly substitute activities, so
that pacing is appropriately aligned with the pacing of investigations.
Packages and Groups
Investigation 1
Multiplication Tables
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Investigation 2
Double-Digit Multiplication
Investigation 3
Multiplication and Division Choices
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“Another Pattern” (p. 7)
Students create 20 by 20 or 24 by 24
multiplication tables and examine the patterns
of multiples larger than 12
“Multiple Patterns” (p.10)
“Comparing Numbers in Multiple Towers”
(p.14)
Session 3: “Multiple Plaids”
Students conduct independent research on the
use of multiplication in industry using an online
search engine, such as Google, and personal
interviews. Students synthesize and share
findings.
Students
Students create and display the results of a
survey in which they explain the cluster
problem strategy to adults and question adults
about:
 the usefulness of this strategy
 whether they understand the strategy
 whether they find it easier to use than the
strategy they learned in school
Students create multi-step, multi-operational
story problems for Choice Time
“Which Numbers Have Many Factors” (p. 55)
“Students Secret Numbers” (p. 66) coupled
with peer reviews.