Lesson 3 Specific Side Lengths
Let’s find and draw shapes with specific side lengths.
Warm-up Which One Doesn’t Belong: Different Shapes
Which one doesn’t belong?
Activity 1 Measure Twice, Draw Once
Problem 1
Diego drew a shape that has fewer than 5 sides. Two sides are 3 centimeters long. Circle shapes that could be Diego’s shape.
Problem 2
Tyler drew a shape that has 4 sides. Each side is 2 inches long.
Circle shapes that could be Tyler’s shape.
Draw another shape that could be Tyler’s shape.
Priya drew a shape that has more sides than Tyler’s shape. Only one side of her shape is 2 inches long. Draw two shapes that could be Priya’s shape.
Activity 2 Build a Shape
Problem 1
Choose your own attributes. Circle an attribute from each row.
sides
corners
side length
1 side is 2 in.
2 sides are 2 in.
2 sides are 3 in.
4 sides are 2 in.
square corners
all square corners
Draw and name a shape with the attributes you chose. If you cannot draw the shape, explain why.
Name:
Shape:
Problem 2
Choose your own attributes. Circle an attribute from each row.
sides
corners
side length
1 side is 2 in.
2 sides are 2 in.
2 sides are 3 in.
4 sides are 2 in.
square corners
all square corners
Draw and name a shape with the attributes you chose. If you cannot draw the shape, explain why.
Name:
Shape:
Problem 3
Choose your own attributes. Circle an attribute from each row.
sides
corners
side length
1 side is 2 in.
2 sides are 2 in.
2 sides are 3 in.
4 sides are 2 in.
square corners
all square corners
Draw and name a shape with the attributes you chose. If you cannot draw the shape, explain why.
Name:
Shape:
Problem 4
Cover your attribute table and trade papers with your partner. Guess which attributes they used to draw their shape.
Problem 5
If you have time… Are there any attributes that are impossible to put together to make a shape? Show or explain.
Practice Problem
Problem 1
Draw a quadrilateral that has 3 sides that are 2 inches long.
Draw a different quadrilateral that has 3 sides that are 2 inches long.