• Units = ones
Base Ten Pieces
• Rods = tens
• Flat = hundreds
Use rods to cover a flat
• How many rods did you use to cover the flat?
• If a flat represents 1 whole, then what fraction does one rod represent?
• What fraction of the flat is 7 rods?
• What fraction of the flat is 4 rods?
• What decimal number is represented by 10 rods?
• What decimal number is represented by 1 flat and 5 rods?
• How many tenths are in two wholes?
• How would you write 20 tenths using decimal notation?
• How many small squares are in a flat?
• Which base ten piece would you use to show one hundredth? Why?
• How many hundredths does a rod represent?
• How would you write 10 hundredths using decimal notation?
• Do 0.10 and 0.1 represent the same number?
• Explain why 0.10 and 0.1 represent the same number using the base ten blocks.
Write the number that represents
3 flats, 5 rods, and 7 units using decimal notation.
3.57
Write the number that represents 2 flats, 4 rods, and 1 unit using decimal notation.
2.41
Find sheet “Day 14 Base Ten Grids”
• How many small squares are on this grid?
• What fraction of the grid does each small square represent?
• What is the decimal representation for each small square?
• What is the decimal representation for each row or each column?
• Shade 2 columns and 4 small squares, what decimal have we represented?
Find in your notebook, “Day 14, Blank
Base Ten Grids A”
Use the Blank Grids to shade each of the following decimals!!
Example: 1.82 – You would shade one whole grid
PLUS 8 columns and 2 squares
1.05
2.57
1.97
0.84
0.04
2.67
Find sheet “Day 14 Base Ten Grids”
AGAIN
Look at Grid B
• How many tiny rectangles are on this grid?
• What fraction of the grid does each tiny rectangle represent?
• How do you think we might represent this number using decimal notation?
• What do you think this place value is called? Why?
• Shade 2 rows, 8 small squares, and 9 tiny rectangles, what decimal have I represented?
Find in your notebook, “Day 14, Blank
Base Ten Grids B”
Use the Blank Grids to shade each of the following decimals!!
Example: 1.823 – You would shade one whole grid PLUS
8 rows, 2 small squares, and 3 tiny rectangles
0.647
2.418
0.749
1.437
1.503
2.376
Homework :)