2x1 Multiplication

The students are learning how to multiply 2-digit numbers by 1-digit numbers. We are starting at the concrete level by using base ten blocks, pictorial level by drawing pictures of blocks, and by using partial products. Partial products are part of the answer to a multiplication problem. For example, if we were multiplying 17x5 we would multiply the numbers in the ones place first (7x5=35). Next, we would multiply the tens place (10x5=50). We find the 10 because 17 is equal to 10+7. So, our partial products would be 35 and 50. Last, you add the partial products together to find the end product, or final answer, which would be 85. This is very different than the traditional way we use to multiply. The students will learn the traditional method once they have a strong foundation by understanding with pictures and place value. I encourage you to ask your child to share what they are learning and practice at home. Some students have been taught the standard method for multiplying 2x1-digit numbers. However, I highly recommend you do not expose your child too much to this method just yet until they have a stronger foundation. Middle of next week we will begin focusing on the traditional method. Please keep in mind this is a very new concept and the students need time to process the new information and problem solve through the process.