University of California, Berkeley's Lawrence Hall of Science
Explore STEM activities and experiments
Explore science, math, engineering, and technology activities for all ages. Search by topic, cost, or age. Access over 3,500 free experiments, games, and lessons. Filter by keywords or specific subjects.
Expand number sequencing understanding for children.
This app expands number sequencing understanding for children who have mastered counting. It helps children grasp skip counting concepts and patterns by twos, threes, fours, fives, sixes, sevens, eights, nines, and tens.
