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| Math
A |
Adding and
Subtracting
Using Tiles
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Algebra tiles can be very beneficial in
helping students to understand the concept of "like terms" and combining of terms.
See
Making Homemade Tiles
for a template for creating algebra tiles for your students.
| Key: |
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=x² |
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red tiles= negatives |
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1. Show:
(x² + 3x - 2) + ( 3x² - 5x + 4) = 4x² - 2x + 2
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2.
Show:
(x² + 2x -
1) - (3x² - 5x + 3) = -2x² + 7x - 4
Represent the opposite of 3x² - 5x + 3
(change the signs)
and proceed to add.
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