Base ten blocks7/25/2023 ![]() ![]() ![]() Use a dry erase marker to draw a decimal point between the ones place and the tenths place. To create mats like the ones I used in my lesson, draw the 4-column chart above on a large sheet of heavy paper (18″ x 24″) and laminate it. I found that it’s really important to create a place value mat (like the one shown above) for these lessons because it helps students remember what place is represented by each model. When introducing decimals, you can use the cubes to represent tens, the flats to represent ones, the rods for tenths, and the units for hundredths. Be sure to download the freebie that goes with this lesson! How to Introduce Decimals, Step by Step ![]() Kids have to understand that each place to the left is 10 times the size of the place to the right, and base 10 blocks are the best way to explore that concept. Primary teachers often use them to introduce whole numbers, but base 10 blocks are also effective with upper elementary students when exploring decimals. Whether you’re introducing whole number concepts or decimal place value, it’s important to start at the concrete level, and base 10 blocks work perfectly because they are sized according to their value.Įven 5th graders aren’t too old for base 10 blocks. Understanding place value is essential to developing a solid foundation of mathematical understanding. There’s a reason math teachers start the year by introducing or reviewing place value concepts. ![]()
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