We have been working on using place value disks to count 3 digit numbers. We are working on knowing when to exchange ones, for 10’s, and 10’s for hundreds. We are using a place value chart to help organize our disks and to help visualize how many we have and how many more that we need before we exchange 10 of a unit for the next unit (1’s to 10’s, 10’s to 100’s). I encourage students to ALWAYS draw their disks in a 10 frame pattern, completing a vertical row(column) of 5 before starting a new column, if needed. That way students can “see” how many they have without counting, and know how many more they need to complete a 10 frame and trade or exchange units.<\/p>\n
Here are a couple of videos that go along with each lesson so far using the place value disks. I know this is different than how we learned or even older children have learned. I assure you that it builds a greater understanding of how numbers work so that when we get to traditional math, it will make more sense to your child.<\/p>\n
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