Use five computer manipulatives to investigate a variety of important mathematical ideas. The Playgrounds offer free exploration for students and allow teachers to develop interactive problem solving and critical thinking activities. Use the Exercises to reinforce concepts by providing different levels of drills. Research studies using Hands-On Math have shown that students learn equally well with the software compared to other manipulative based approaches, but that with the software the teacher avoids time-consuming tasks such as handing out, collecting and organizing the manipulatives and students spend more time in productive investigations. Use Hands-On Math 2 to teach a variety of math concepts including addition of whole numbers and integers, symmetry, place value, logic and problem solving. Manipulatives include Two Color Counters, Color Tiles, Mirrors, Attribute Blocks, Base Ten Blocks. Playgrounds enable students to explore math concepts at their own pace. Exercises provide reinforcement of math concepts as students practice skills. Print with journal lines for student justification and evaluation. Comprehensive teacher's guide allows teachers access to content enriched classroom activities. Mac/Win CD-ROM.