Understanding Area and Shapes

Mrs. Walker teaches students how to find the area of plane shapes using pattern blocks. The lesson involves comparing shapes using triangles, understanding the relationship between block size and quantity, and measuring areas with square units. Students learn that larger blocks require fewer pieces to cover the same area. The lesson concludes with exercises on creating rectangles with specific square units.

What is the main goal of today's lesson?

• To learn about the perimeter of shapes

• To understand the volume of solids

• To identify the area of plane shapes

• To explore the properties of circles

Which materials are needed for the lesson?

• Graph paper and a pencil

• A compass and protractor

• Pattern blocks and a problem set

• A calculator and ruler

What should you do after thinking about which shape takes up more space?

• Draw the shapes

• Pause the video and think

• Discuss with a partner

• Write down your answer

How many triangles were used to cover shapes A and B?

• Four triangles each

• Seven triangles each

• Five triangles each

• Six triangles each

What does it mean if two shapes take up the same number of triangles?

• They have the same volume

• They have the same area

• They have the same perimeter

• They have the same height

What is the relationship between the size of pattern blocks and the number needed to cover a shape?

• Larger blocks require fewer to cover a shape

• Smaller blocks require fewer to cover a shape

• Larger blocks require more to cover a shape

• Size of blocks does not affect the number needed

How many square pattern blocks are needed to cover the rectangle?

• Four

• Five

• Seven

• Six

Why are they called square units?

• Because they are measured in squares

• Because they are measured in circles

• Because they are measured in hexagons

• Because they are measured in triangles

Can trapezoids be used to measure the area of a rectangle effectively?

• Yes, they fit perfectly

• No, they leave gaps

• Yes, but only for small rectangles

• No, they are too large

What is a challenge when using trapezoid pattern blocks to measure area?

• They are too expensive

• They leave spaces and don't fit neatly

• They overlap too much

• They are too small