Unit 1: My Reflections

Lesson 1: What are Scaled Copies?

• I can describe some characteristics of a scaled copy.
• I can tell whether or not a figure is a scaled copy of another figure.

Lesson 2: Corresponding Parts and Scale Factors

• In a pair of figures, I can identify corresponding points, corresponding segments, and corresponding angles.
• I can describe what the scale factor has to do with a figure and its scaled copy.

Lesson 3: Making Scaled Copies

• I know what operation to use on the side lengths of a figure to produce a scaled copy.
• I can draw a scaled copy of a figure using a given scale factor.

Lesson 4: Scaled Relationships

• I can use corresponding distances and corresponding angles to tell whether one figure is a scaled copy of another.
• When I see a figure and its scaled copy, I can explain what is true about corresponding angles.
• When I see a figure and its scaled copy, I can explain what is true about corresponding distances.

Lesson 5: The Size of the Scale Factor

• I can describe the effect on a scaled copy when I use a scale factor that is greater than 1, less than 1, or equal to 1.
• I can explain how the scale factor that takes Figure A to its copy Figure B is related to the scale factor that takes Figure B to Figure A.

Lesson 6: Scaling and Area

• I can describe how the area of a scaled copy is related to the area of the original figure and the scale factor that was used.

Lesson 7: Scale Drawings

• I can explain what a scale drawing is, and I can explain what its scale means.
• I can use a scale drawing and its scale to find actual distances.
• I can use actual distances and a scale to find scaled distances.

Lesson 8: Scale Drawings and Maps

• I can use a map and its scale to solve problems about traveling.

Lesson 9: Creating Scale Drawings

• When I know the actual measurements, I can create a scale drawing at a given scale.
• I know how different scales affect the lengths in the scale drawing.
• I can determine the scale of a scale drawing when I know lengths on the drawing and corresponding actual lengths.

Lesson 10: Changing Scales in Scale Drawings

• Given a scale drawing, I can create another scale drawing that shows the same thing at a different scale.
• I can use a scale drawing to find actual areas.

Lesson 11: Scales without Units

• I can use scales without units to find scaled distances or actual distances.
• I can explain the meaning of scales expressed without units.

Lesson 12: Units in Scale Drawings

• I can write scales with units as scales without units.
• I can tell whether two scales are equivalent.

Lesson 13: Draw It to Scale

• When given requirements on drawing size, I can choose an appropriate scale to represent an actual object.
• I can create a scale drawing of my classroom.