The video tutorial covers the concept of perimeter, focusing on finding missing sides using visual models like tape diagrams and part-whole models. It reviews addition equations and demonstrates solving for missing addends. Example problems illustrate these concepts, and the video concludes with a summary and practice problems.

What is the main objective of today's lesson?

• To understand multiplication tables

• To find the missing side when given the perimeter

• To calculate the volume of solids

• To find the area of shapes

How is the perimeter of a shape defined?

• The volume of the shape

• The number of sides a shape has

• The total length around the edges of a figure

• The area inside the shape

What is the perimeter of a rhombus with each side measuring 3 cm?

• 9 cm

• 12 cm

• 18 cm

• 15 cm

What are the two parts of an addition equation?

• Minuend and difference

• Factors and product

• Addends and sum

• Dividends and quotient

In a part-whole model, what do the addends represent?

• The parts being added together

• The quotient

• The total

• The difference

How can you solve for a missing addend using subtraction?

• By adding all the numbers together

• By subtracting the sum of known addends from the total

• By dividing the total by the number of addends

• By multiplying the known addends

What is the width of a rectangle if its perimeter is 28 cm and two sides are 10 cm each?

• 3 cm

• 6 cm

• 5 cm

• 4 cm

If a rhombus has a perimeter of 16 inches, what is the length of one side?

• 3 inches

• 2 inches

• 4 inches

• 5 inches

In a triangle with a perimeter of 24 inches, if two sides are 6 inches and 8 inches, what is the length of the third side?

• 10 inches

• 8 inches

• 12 inches

• 14 inches