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LEARNING TARGET
LEARNING TARGET
I can write biconditionals and identify good definitions.
I can write biconditionals and identify good definitions.
I DO
I DO
What is a biconditional statement?
It's an "if and only if" statement that combines a true conditional and its true converse.
What is a converse again?
It's when you switch the hypothesis and conclusion (write them backwards).
In other words: You can write a biconditional statement (put "if and only if" in the middle) if BOTH the conditional and converse are true.
How does this relate to definitions?
If a definition can be written as a biconditional, it's a good definition.
Let's try some examples:
For each example, write it as a biconditional if possible.
If the sum of the measures of two angles is 180, then the two angles are supplementary.
If a ray is an angle bisector, then it divides an angle into two congruent angles.
A fish is an animal that swims.
WE DO
WE DO
Let's do the first problem on the work together! Work alone when you're ready.
YOU DO
YOU DO
Try this for a 4!
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