Math: Multiplying Fractions
Objectives: Learn how to multiply fractions Develop the conceptual understanding behind the procedure Method: I started the lesson with a warm up. We were just beginning the new chapter, so we began with a facts check in using a Mad Minute. Using the examples from the Math In Focus: Lesson 4.1, I created a worksheet for the girls to write on to model the concept behind multiplying fractions. I projected the sheet onto the white board and we used different colored markers and highlighters to demonstrate how multiplying fractions is the same as finding a fractional part of the other fraction. I said, "Which way shows fourths? Color in 1 row to show 1/4. Here there are tally marks to show 1/4. Which way shows thirds? Color in 2 columns to show 2/3. How many units are in the whole rectangle? What fraction is both purple and has tally marks? 2/12 which is the same as 1/6." We followed that same dialogue for the next few examples. After completing a few more, I asked th...