Order according to same numerator or denominator rule
Five unordered fractions
Order from smallest to largest
Cognitive Task Analysis: Ordering Fractions
Choose appropriate benchmarks for each fraction, then order accordingly
Order fractions with same benchmark
Fractions in order
initiates
means
before
before
outcome
Mental computation and estimation
(v algorithms)
Same denominator: fraction with larger numerator is larger
Benchmarks
Same numerator: fraction with larger denominator is smaller
style
style
refers to
refers to
refers to
Standard benchmarks:
0, 1/4, 1/3, 1/2, 2/3, 3/4, 1
refers to
style
Order according to which are <, >, or = to the benchmark
Order according to distance from the benchmark
refers to
Easy to mentally order
refers to
means
before