Fourth graders use a 100's chart, Unifix cubes, graph paper and colored pencils to experiment with patterns. They arrange their Unifix cubes on the 100's chart and then identify and record patterns on the graph paper.

Third graders review the concept of place value and number sense. With a partner, they are given four cards with numbers on them. Using the cards, they practice making new numbers and completing addition and subtraction to find the...