Here is a great problem-solving activity for young mathematicians. Intended solely for instructional purposes, the activity is appropriate for learners to add four numbers together. Not only must they add four numbers together,...

Do you remember the days when a cup of coffee cost five cents? At A.W. Dennett restaurant in 1894, you could buy a five-cent cup of coffee and as well as a five-cent slice of pie to accompany it. The menu from that year is a primary...

Students explore the amount of electricity used and wasted in homes and at school using kilowatt meters. In this environmental energy lesson plan, students compute power usage by appliances over time and identify ways in which...