On this interactive site students practice time and mass skills. By the end of the lesson students will be able to describe the mass of more than two objects and record the mass of three objects by lifting.

This instructional activity helps children make a connection between the digital and analog clock. In general, the number system is based on units of ten which can sometimes make it difficult for children to realize that time is based on...

Second graders worked on telling time to the hour and half hour earlier in the year. Now they will apply their understanding of counting by 5s to telling time to the five minute interval.