Questions and more models follow. Part two of the third lesson is a problem-solving strategy which discusses 0.2 X 0.5 with models. Questions and more models follow. Lesson 4 also has two parts on placing the decimal point in multiplication. You can decide whether your answers make sense when you are measuring the mass of an object, such as a pumpkin .
Students are to estimate the product of two decimals.
The first case is 4.8 X 0.9. Students are asked whether the result is 4.32 or 43.2. They are asked what strategy they used to place the decimal point. An example is presented, 0.6 X 26. Three steps are outlined, basically saying to multiply as with whole numbers and use the estimate to place the decimal.