Exploring Rigid Motions: Reflection

The video tutorial explains how to reflect geometric figures over lines using paddy paper. It covers the process of tracing figures and lines, flipping the paddy paper to create reflections, and ensuring accuracy despite human error. The tutorial includes examples with two figures, A and B, and discusses how to handle cases where figures touch the line of reflection. Students are encouraged to practice these techniques on their own worksheets and reflect on the process.

What is the primary tool used for reflecting figures over lines in this tutorial?

• Graph paper

• Tracing paper

• Carbon paper

• Paddy paper

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the first step in reflecting Figure A over line L?

• Tracing the figure and the line on paddy paper

• Using a ruler to measure distances

• Drawing a new figure

• Folding the worksheet

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Why is it important to clearly indicate the start and end points of line L?

• To avoid mistakes in drawing

• To accurately align the reflection

• To make the figure look better

• To ensure the line is straight

Tags

CCSS.4.G.A.1

What should you do after tracing the figure and line on the paddy paper?

• Erase the original figure

• Flip the paddy paper and align it with the worksheet

• Draw a new line

• Cut out the traced figure

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the purpose of pressing down with a pencil when tracing the reflection?

• To ensure the figure is accurate

• To transfer the image onto the worksheet

• To create a shadow for better visibility

• To make the lines darker

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the reflected image of Figure A called?

• Figure A2

• Image of A

• Duplicate of A

• Shadow of A

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is unique about Figure B in this tutorial?

• It has curved lines

• It is a circle

• It is larger than Figure A

• It touches line O

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

What should you do if there is writing on your paddy paper?

• Erase the writing

• Ignore it and use the blank space

• Trace over the writing

• Use a new paddy paper

Tags

CCSS.RI.6.3

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5

What is the final step after tracing the reflection of Figure B?

• Color the figure

• Fill in the outline of the reflection

• Erase the original figure

• Measure the angles

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What are the two types of reflecting mentioned in the final instructions?

• Artistic and thinking

• Geometric and artistic

• Geometric and thinking

• Thinking and drawing

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5