Learning goals: Teacher Facing Generalize (orally and in writing) that the number of decimal places in a product is related to the number of decimal places in the factors. Justify (orally) the product of two decimals, which each have only one non-zero digit, by multiplying equivalent fractions that have a power of ten in the denominator. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 6.5 Arithmetic in Base Ten, Grade 6.