Compare and Contrast helps teachers
achieve five distinct instructional goals:
• Strengthen Student Memories - by focusing student thinking on analysing
pairs of ideas, the Compare & Contrast strategy strengthens students'
ability to remember key content
• Develop Higher Order Thinking Skills - C & C acts as a practical and
easy-to-use introduction to Higher Order Thinking [HOTS]
• Increase Student Comprehension - C & C improves comprehension by
highlighting important details, making abstract ideas more concrete, and
reducing confusion between related concepts (eg. meiosis versus mitosis)
• Enhance Students' Writing in the Content Areas - The C&C strategy
strengthens students' writing skills by providing a simple structure that
helps them organize information and develop their ideas with greater clarity
and precision.
• Develop Students' Habits of Mind - In their years of research into the
defining characteristics of intelligent behaviour and thought, Art Costa and
Bena Kallick (2008, 2009) have identified 16 “habits of mind.” By nourishing
these habits in our students, we give them the tools they need to use their
minds well, thus increasing their chance for future success. Using Compare &
Contrast in the classroom will help students develop these habits of mind:
thinking flexibly; thinking about thinking (metacognition); striving for
accuracy; applying past knowledge to new situations; and thinking and
communicating with clarity and precision.
(Source:
Harvey F. Silver)
This activity is used as an
introductory activity for the whole class or for groups.
Compare and Contrast Charts do just
about what you'd expect them to with a name like that: they're useful for
looking at two quantities and determining in what ways they are similar and
in what ways they are different.
The chart is pictured here is one
way to approach this comparison. First, you look at the similarities. Then
you consider the differences, making sure to indicate on what criteria you
are drawing out the dissimilarities.
1. Establish the question or
problem. This could entail the use of stimulus material.
2. State the criteria for
evaluating the ideas – feasible, appropriate and specific.
Venn diagrams are also known as set diagrams or logic diagrams. A Venn
diagram is a widely used diagram style that shows the logical relation
between sets, popularized by John Venn in the 1880s.
They use overlapping shapes, usually circles, to show the relationships
between two or more items, such as highlighting how the items are similar
and how they are different. While many people first encounter them in
school, Venn diagrams are common in mathematics, linguistics, computer
science, and business.
Why you should use a Venn diagram
1. Visually organize your information
Students and professionals alike benefit from using Venn diagrams. Use them
to see the relationships between sets of items and think through the logic
behind concepts.
Compare two or more choices
If you’re trying to choose your best option, such as what product or service
to buy, use a Venn diagram to compare your choices. You’ll see what they
have in common and what sets them apart.
2. Solve complex math problems
If you’re a mathematician, use a Venn diagram to solve an intricate math
problem.
Compare data sets
Venn diagrams help you understand your data. Compare data sets, find
correlations, and predict the probability of certain occurrences.
3. Follow the logic
Use a Venn diagram to reason through the logic behind statements or
equations. For example, the diagram could help you understand the Boolean
logic behind a word search involving “or” and “and” statements.