Explain how to solve 1-step word problems involving four operations on decimals using these PowerPoint slides. A bar model approach or unitary method is used to solve each word problem. Students are guided to solve each problem step-by-step - modeling, writing solutions, and writing the answer.Here's the breakdown of the slides on this PowerPoint:Slides 1-8 discuss a problem involving addition of decimals. Slides 9-15 discuss a problem involving subtraction of decimals.Slides 16-22 discuss a pro