Partitioning Rectangles into Squares

Mrs. Walker guides students through a lesson on partitioning rectangles into arrays using scissors. The lesson involves cutting rectangles into rows and columns, combining them, and constructing new arrays. Students learn to decompose rectangles and write repeated addition sentences. The video concludes with an extension problem and encourages students to review their work.

What is the main goal of today's lesson?

• To learn about different shapes

• To draw different types of arrays

• To solve complex equations

• To partition rectangles into squares

Which materials are required for this lesson?

• Pencil and paper

• Paint and brushes

• Scissors and lesson template

• Calculator and ruler

What is the first step in the lesson?

• Cutting out rectangles A, B, and C

• Drawing a rectangle

• Coloring the rectangles

• Cutting out circles

How many rows does Rectangle A have after partitioning?

• Three rows

• Two rows

• One row

• Four rows

How many squares are in each row of Rectangle A?

• Two squares

• Three squares

• Four squares

• Five squares

What is the total number of squares in Rectangle A?

• Six squares

• Eight squares

• Ten squares

• Twelve squares

How many columns does Rectangle B have after partitioning?

• Two columns

• Four columns

• Three columns

• Five columns

How many squares are in each column of Rectangle B?

• Two squares

• Three squares

• Four squares

• Five squares

What is the total number of squares in Rectangle B?

• Twelve squares

• Ten squares

• Eight squares

• Six squares

What do you notice when combining Rectangles A and B?

• They create a triangle

• They form a circle

• They have different sizes

• They have the same size and shape