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Place Value: Ones & Tens
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What you will learn from this videoWhat you will learn
- We'll learn about place value with ones and tens!
- We will also learn that any 2 digit numbers can be broken down into groups of tens and ones.
- And we'll explore how this knowledge can help us make tie dye shirts, pack for a picnic and even finish an art project!
- Discussion Questions
Before Video
How can you show 10 and 2 with counters in ten frames and in a number bond?ANSWERTwo tens frames, one with 10, one with 2 objects. A number bond showing 12 as the whole and 10 and 2 as the parts.
Two tens frames, one with 10, one with 8 objects. 10 + 8 = 18
Two tens frames, one with 10, one with 4 objects. A number bond showing 14 as the whole and 10 and 4 as the parts.
Two tens frames, one with 10, one with 7 objects. 10 + 7 = 17
The 1 means 1 ten, and the 6 means 6 more.
After Video
[Show students 5 tens blocks.] Write the number that the blocks represent. How do you know?ANSWERThe blocks show 5 tens. 5 tens is 50. The number 50 has a 5 in the tens place and a 0 in the ones place.
The blocks show 3 tens and 4 ones. The number 34 has a 3 in the tens place and 4 in the ones place.
63 has 6 tens and 3 ones. I can show 63 with 6 tens blocks and 3 ones blocks.
4 tens or 40; 4 is in the tens place, so its value is 4 tens or 40.
29 is 2 tens and 9 ones. 1 more one makes 2 tens and 10 ones. 10 ones is the same as 1 more ten. That gives me 3 tens. 30 is 3 tens. So the answer is 30.
- Vocabulary
- Place Value DEFINE
The value of a digit based on its position in a number.
- Base-ten blocks DEFINE
Blocks that can be used to represent the number of tens and ones in a number.
- Ones DEFINE
A place in the place-value system that has a value of 1. In the number 23, 3 is in the ones place.
- Tens DEFINE
A place in the place-value system that has a value of 10. In the number 23, 2 is in the tens place.
- Digit DEFINE
Numerals from 0 to 9 that form part of a number.
- Groups DEFINE
Objects that have the same attribute are put together to form a group. For example, in the place-value system, 7 ones can be put together in a group of ones.
- Place Value DEFINE
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
- Teacher Guide
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Level 1
[Show students 5 tens and 2 ones in base-ten blocks.] Write the number that the blocks represent.
Level 2
Represent 45 with base-ten blocks. Draw a picture.
Level 3
What is the value of 6 in 61? How do you know?
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