The
Decimal and Fraction Charts abound in visual patterns that
challenge students to perform computations with decimals
and fractions and entice them to discover a myriad of mathematical
patterns among the numbers.
The poster has the chart on the left side and, on the right,
directions for finding patterns. Each wall chart consists
of an 11x11 matrix of squares that contain nine numbers (decimals
or fractions, depending on the chart). The numbers in each
square relate to one another via the four arithmetic operations,
and the numbers in each position have equal value on both
charts (for example, where the Fraction Chart has 3/8, the
Decimal Chart has 0.325 in the same position). By comparing
numbers in similar locations, students can find many patterns
among them. In addition, the chart is divided in half along
a diagonal to encourage investigation of patterns with respect
to the halves. The poster also serves as the teacher's guide
in the Classroom Set.
The student version of each chart consists of 25 of the
squares and 10 sample patterns on the top. The patterns found
on each chart apply to the other because of the equality
of the decimal and fractional values in each position on
the chart. Using these charts together will help reinforce
the concept of decimal–fraction equivalence.
Both the Decimal Chart and the Fraction Chart are recommended
for upperelementary to middleschool students for their
diverse concepts and the skills that the students will learn.
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