Topics covered in the probability chapter of the sixth unit in this SMSG series of student texts are fair and unfair games, outcomes and events, tree diagrams, and finding and estimating probability. The measurement chapter includes a discussion of length, units in the British and metric systems, perimeter, angle measure, circumference, approximation, and precision. For a special edition covering the topics in probability written for slow learners, see ED 046 768. See SE 016 852 through SE 016 879 for teacher's guides and for other student texts in this series. (DT)