Work through "Investigating LCM and GCF Using Rods" using the virtual Integer Rods. How would you explain the difference between multiples and factors using the ideas from this lesson? In what ways does this approach help children develop meaning for the common-denominator approach for adding and subtracting fractions?
Work through the pattern block tasks by either using the interactive patterns program or printing out and using the grid paper. As you explored these tasks with models, what was challenging or engaging about these tasks? What fraction ideas are developed or explored in these tasks?