This lesson taught how to multiply and divide decimal numbers. Students learned to multiply decimals by 10, 100, and 1000 by shifting the decimal point to the right. They also practiced multiplying decimals with 1-digit numbers and placing the decimal correctly in the answer. Division of decimals by whole numbers was also covered, where students divided amounts equally to find parts. Word problems helped apply these skills in real situations like measuring distance, time, weight, and money.