practice with rotations
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Practice with Rotations. Tic- Tac -Toe Questions. Practice with Rotations. Divide the class into two teams, named “X” and “O”. Draw a large tic-tac-toe grid on the board. Take turns asking questions of each team. The answer must include an explanation. If answered correctly, they - PowerPoint PPT PresentationTRANSCRIPT
Practice with RotationsTic-Tac-Toe Questions
Practice with Rotations
• Divide the class into two teams, named “X” and “O”.
• Draw a large tic-tac-toe grid on the board.• Take turns asking questions of each team. The
answer must include an explanation.– If answered correctly, they
may place their symbol onthe game board.
– If answered incorrectly, theother team may place theirsymbol on the game board.
• The first team with 3 symbolsin a row wins the game.
Question 1
• TRUE or FALSE?• This pinwheel is spinning in a counterclockwise
direction.
• WHY?
Question 1
• FALSE• This pinwheel is spinning in a counterclockwise
direction.
• WHY? The pinwheel is spinning in the same direction as the hands of a clock.
Question 2
• TRUE or FALSE?• The number of degrees separating the center
lines of the blades on this fan is 60°.
• WHY?
Question 2
• FALSE• The number of degrees separating the center
lines of the blades on this fan is 60°.
• WHY? There are four blades on the fan. Divide 360° by 4. The blades are 90° apart.
Question 3
• TRUE or FALSE?• This drawing has been rotated 180°.
• WHY?
Question 3
• FALSE• This drawing has been rotated 180°.
• WHY? The rotation is 90°.
Question 4
• TRUE or FALSE?• This triangle has been rotated in a clockwise
direction.
• WHY?
Question 4
• TRUE• This triangle has been rotated in a clockwise
direction.
• WHY? Notice the movement of A to A’ and so on. It is in a clockwise direction.
Question 5
• TRUE or FALSE?• Fish 2 is a 45° counterclockwise rotation of Fish 1.
• WHY?
Question 5
• TRUE• Fish 2 is a 45° counterclockwise rotation of Fish 1.
• WHY? Remember 45° is half of a 90° rotation.
Question 6
• TRUE or FALSE?• Polygon A'B'C'D' is a 180 degree
counterclockwise rotation of polygon ABCD.
• WHY?
Question 6
• TRUE• Polygon A'B'C'D' is a 180 degree
counterclockwise rotation of polygon ABCD.
• WHY? Remember the letters which label the diagram do not have to be rotated.
Question 7
• TRUE or FALSE?• Seahorse 2 is a 90° counterclockwise of
Seahorse 1.
• WHY?
Question 7
• FALSE• Seahorse 2 is a 90° counterclockwise of
Seahorse 1.
• WHY? The rotation is 90° clockwise or 270° degrees counterclockwise.
Question 8
• Graph ΔABC under the following rotations:– R90°(ΔABC)=ΔA’B’C’– R180°(ΔABC)=ΔA’’B’’C’’– R270°(ΔABC)=ΔA’’’B’’’C’’’
Question 8
• Graph ΔABC under the following rotations:– R90°(ΔABC)=ΔA’B’C’– R180°(ΔABC)=ΔA’’B’’C’’– R270°(ΔABC)=ΔA’’’B’’’C’’’