Calculating Areas with Geo Boards

The video tutorial provides a recap on finding the area of parallelograms and triangles using a geoboard. It explains the process of calculating the area of a rectangle by counting spaces between pins and extends this concept to parallelograms by rearranging triangles. The tutorial also covers how to find the area of a triangle by enclosing it in a rectangle and dividing the area by two. The key formulas for the area of a parallelogram and a triangle are highlighted.

What tool is used in the lesson to help find areas?

• Compass

• Ruler

• Geo board

• Calculator

How do you calculate the area of a rectangle using a Geo board?

• Length + Width

• Length x Width

• Length / Width

• Length - Width

What is a square unit?

• A unit of length

• A unit of volume

• A unit of area

• A unit of weight

How is a parallelogram created from a rectangle on a Geo board?

• By moving pins

• By adding more pins

• By changing the board

• By removing pins

What happens when you move a triangle on a Geo board?

• It changes shape

• It becomes a rectangle

• It retains the same area

• It loses area

What is the formula for the area of a parallelogram?

• Base - Height

• Base x Height

• Base / Height

• Base + Height

How can you find the area of a triangle using a Geo board?

• By measuring the sides

• By using a ruler

• By enclosing it in a rectangle

• By counting the pins

What is the first step in calculating the area of a triangle?

• Count the pins

• Measure the height

• Enclose it in a rectangle

• Find the perimeter

How do you determine the area of a triangle from a rectangle?

• Subtract the rectangle's area

• Double the rectangle's area

• Multiply the rectangle's area by two

• Divide the rectangle's area by two

What is the formula for the area of a triangle?

• Base + Height

• Base x Height / 2

• Base x Height

• Base - Height