Digital Learning for Discovery 4th Grade 

Lesson 30: Points, Lines, Rays, and Angles 

 

• I can identify 2-dimensional figures and their attributes.
   

•  I can draw 2-dimensional figures. 
   

• I can compare and contrast the 2-dimensional figures. 
   

• I can identify and draw points, lines, line segments, rays, and angles. 
   

• I can recognize an angle as a geometric figure.
   

• I can identify acute, right and obtuse angles.
   

• I can identify and draw parallel and perpendicular lines, and identify them in 2-dimensional figures. 

 

Lesson 31: Angles 

 

• I can identify acute, right and obtuse angles. 
   

• I can recognize an angle as a geometric figure. 
   

• I can describe 360 degrees as a full circle. 
   

• I can recognize the relationship between the measure of the angle and the part of a circle that angle turns through.

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• I can use a protractor to measure and angle.
   

• I can use a protractor to draw an angle. 

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Lesson 32: Add and Subtract with Angles 

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• I can identify acute, right and obtuse angles. 
   

• I can recognize an angle as a geometric figure.
   

• I can recognize that an angle can be decomposed into several smaller angles.
   

• I can add and subtract to find the angles measurements. 
   

• I can use a diagram to ding the unknown angle measurements. 

 

Lesson 33: Classify 2 Dimensional Figures 

 

• I can sort figures based on parallel or perpendicular sides and angles. 
   

• I can recognize and classify triangles based on their sides and angles.
   

• I can name triangles based on their angles. 
   

• I can identify and draw quadrilaterals based on parallel and perpendicular lines, and identify them in 2-dimensional figures. 

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Lesson 34: Symmetry 

 

• I can recognize the symmetry in two-dimensional figures. 
   

• I can draw lines of symmetry in two-dimensional figures.