Third graders roll a die seven times, each time determining whether to add that number of tens or that number of ones to try to make a sum as close to 100 as possible without going over.

Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...

Physics fanatics time five cars as they pass on the highway. They use the times and a 20-yard distance to calculate velocity. They also graph distance vs. time. A page of student pre-lab questions is provided in addition to the activity...

Fifth graders explore common factors. In this factorization activity, 5th graders discover the greatest common factor among two numbers in a game format. Students build on previous knowledge to determine the greatest common factor.

Students explore the concept of modular arithmetic and cryptography. In this modular arithmetic and cryptography instructional activity, students use applets to explore modular arithmetic using a clock and Caesar Ciphers. Students...

Students view butterflies and participate in a butterfly activity to learn needed vocabulary. In this butterfly life cycle activity, students access prior knowledge of butterflies.  Students listen to a butterfly life cycle book....