Objective

By the end of this lesson, you will be able to understand and apply basic concepts of geometry while exploring and building in Minecraft.

Materials and Prep

• A computer or tablet with Minecraft installed
• A notebook and pencil
• A ruler

Activities

1. Start Minecraft and enter a creative mode world.

   Build a simple structure using blocks of different shapes and sizes. Take note of the different geometric shapes you use.

2. Measure the sides of the structure using your ruler. Write down the measurements in your notebook.

   Identify and label the different geometric shapes you used in your structure. For example, if you used rectangular blocks for the base, write down "rectangle" and draw a rough sketch of the shape.

3. Create a new structure using only one type of geometric shape, such as squares or triangles.

   Count the number of blocks you used to build your structure and write it down in your notebook.

4. Calculate the perimeter and area of your new structure using the measurements you took earlier.

   Explain how you arrived at your answers, mentioning the formulas for perimeter and area.

Third Grade Talking Points

• "Geometry is the branch of mathematics that deals with shapes, sizes, and properties of figures."
• "In Minecraft, we can use different blocks to build structures. These blocks have different shapes and sizes, just like the shapes we learn about in geometry."
• "When we measure the sides of a shape, we can find out how long they are. This helps us understand the size of the shape and compare it to other shapes."
• "Perimeter is the distance around the outside of a shape. We can find it by adding up the lengths of all the sides. For example, if a shape has sides measuring 3 cm, 4 cm, 3 cm, and 4 cm, the perimeter would be 3 + 4 + 3 + 4 = 14 cm."
• "Area is the amount of space inside a shape. We can find it by multiplying the length and width of a rectangle or counting the number of squares that fit inside a shape. For example, if a rectangle has a length of 5 cm and a width of 3 cm, the area would be 5 x 3 = 15 square cm."