Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Brincos Y Numeros
In Spanish. Find patterns with numbers less than 50. Also there is an activity to introduce the concept of multiplication.
Khan Academy
Khan Academy: Comparing Volumes With Unit Cubes
In this exercise, students practice comparing volumes with unit cubes. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Wyzant
Wyzant: Multiplying Variables
A short tutorial is presented to demonstrate the product of a power law of exponents. Students can practice the concept using the online worksheet.