Earth on the Earth Part 2
This is the second of a two-part lesson which results in a large outline drawing of the Western Hemisphere on the ground.
A lesson plan for grade 4 Mathematics
Learning outcomes
The students will learn how to plot points on a graph and transfer those coordinates onto a large scale model. The student will identify the major geographical landforms of the Western Hemisphere.
Teacher planning
Time required for lesson
4 hours
Materials/resources
Computer generated graph of the Western Hemisphere (attached); one yard of sand; grid labels (We used small blocks of wood to label each square of the grid; paper will blow away.); globe.
Technology resources
Computer
Pre-activities
Discussion of the process of graphing data and plotting points. Students must know how to determine co-ordinates on a graph.
Students need to be familiar with the outline features of the Western Hemisphere.
Activities
- Students will work in groups of 2 or 3.
- Each student will be given a computer graph of the Western Hemisphere.
- Each group of students will be assigned a row of squares on the grid. (Example- Group 1 will be responsible for everything in row A of the grid, etc.)
- Once all students have been assigned a row on the grid, they will then locate and plot the co-ordinates of each square that has part of the picture in it.
- When this is complete, each group is given a sheet of white paper and must make a sketch of each square in their assigned row that contains a part of the picture.
- When each group has completed the drawings, they proceed to the playground where the large grid has been placed. They go to their assigned row and begin putting down sand to reflect exactly what is in the corresponding square on paper.
- When all sand is down, remove the grid lines and nails.
- The result is the outline of the Western Hemisphere on display on your school grounds.
Assessment
Observe the completed picture of the Western Hemisphere.
Supplemental information
Handout of the computer grid and outline of the Western Hemisphere is attached.
Related websites
N/A
Comments
This lesson is a lot of fun and allows the community to see easily a great project at your school. We always make a video of the students. They enjoy watching it later.
North Carolina Curriculum Alignment
Mathematics (2004)
Grade 4
- Goal 3: Geometry - The learner will recognize and use geometric properties and relationships.
- Objective 3.01: Use the coordinate system to describe the location and relative position of points and draw figures in the first quadrant.
- Objective 3.02: Describe the relative position of lines using concepts of parallelism and perpendicularity.



