Each house is to be connected to receive gas, water and electricity sp that no line intersects another. If the graph of the problem is planar, this can be done on the sphere or the plane.
Students construct number meanings through real-world experiences and the use of physical materials.
Students relate geometric ideas to number and measurement ideas. Students relate geometric ideas to number and measurement ideas. Students can represent situations and number patterns with tables, graphs, verbal rules, and equations and explore the interrelationships of the representations. Students analyze tables and graphs to identify properties and relationships. Students know that mathematical ideas can be represented concretely, graphically and symbolically.