o CCSS.Math.Content.1.NBT.B.2c
The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three,
four, five, six, seven, eight, or nine tens (and 0 ones).
The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three,
four, five, six, seven, eight, or nine tens (and 0 ones).
- 1 ten stick is the equivalent of 10.
- Students will see that when adding additional 10 sticks it adds another ten to the total number.
- This directly relates to the numbers 1-9. Students can see that the number of ten sticks they have also gives them the double digit number.
- For example, 4 Ten Sticks is the same as 40 ones.
- The first number in the double digit sequence always belongs in the Tens position.
The goal of my lesson is essentially a simplified version of learning the multiples of ten by using base ten sticks to see the amount of tens in any given double digit number.
- ***A unit test will be given the following day. A simple study guide will be given to students before they leave.
Review Sheet
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